diff --git a/lib/application/calculator_asc_materials_item/calculator_asc_materials_item_bloc.dart b/lib/application/calculator_asc_materials_item/calculator_asc_materials_item_bloc.dart
index 481d4761d..443fed9b7 100644
--- a/lib/application/calculator_asc_materials_item/calculator_asc_materials_item_bloc.dart
+++ b/lib/application/calculator_asc_materials_item/calculator_asc_materials_item_bloc.dart
@@ -115,8 +115,8 @@ class CalculatorAscMaterialsItemBloc extends Bloc<CalculatorAscMaterialsItemEven
     final cl = tuple.item1;
     final dl = tuple.item2;
 
-    final cAsc = _getClosestAscensionLevel(cl);
-    final dAsc = _getClosestAscensionLevel(dl);
+    final cAsc = _getClosestAscensionLevel(cl, cl == currentLevel);
+    final dAsc = _getClosestAscensionLevel(dl, dl == desiredLevel);
     final skills = _updateSkills(cAsc, dAsc);
 
     return currentState.copyWith.call(
@@ -130,8 +130,9 @@ class CalculatorAscMaterialsItemBloc extends Bloc<CalculatorAscMaterialsItemEven
 
   CalculatorAscMaterialsItemState _ascensionChanged(int currentLevel, int desiredLevel, bool currentChanged) {
     final tuple = _checkProvidedLevels(currentLevel, desiredLevel, currentChanged);
+    final bothAreZero = tuple.item1 == tuple.item2 && tuple.item1 == 0;
     final cAsc = tuple.item1;
-    final dAsc = tuple.item2;
+    final dAsc = bothAreZero ? 1 : tuple.item2;
 
     //Here we consider the 0, because otherwise we will always start from a current level of 1, and sometimes, we want to know the whole thing
     //(from 1 to 10 with 1 inclusive)
@@ -155,7 +156,6 @@ class CalculatorAscMaterialsItemBloc extends Bloc<CalculatorAscMaterialsItemEven
     );
   }
 
-  //TODO: THIS ?
   CalculatorAscMaterialsItemState _skillChanged(int skillIndex, int newValue, bool currentChanged) {
     final skills = <CharacterSkill>[];
 
@@ -212,7 +212,11 @@ class CalculatorAscMaterialsItemBloc extends Bloc<CalculatorAscMaterialsItemEven
     return Tuple2<int, int>(cl, dl);
   }
 
-  int _getClosestAscensionLevel(int toItemLevel) {
+  /// Gets the closest ascension level [toItemLevel]
+  ///
+  /// Keep in mind that you can be of level 80 but that doesn't mean you have ascended to level 6,
+  /// that's why you must provide [isAscended]
+  int _getClosestAscensionLevel(int toItemLevel, bool isAscended) {
     if (toItemLevel <= 0) {
       throw Exception('The provided itemLevel = $toItemLevel is not valid');
     }
@@ -222,6 +226,7 @@ class CalculatorAscMaterialsItemBloc extends Bloc<CalculatorAscMaterialsItemEven
       final temp = kvp.value;
       if (temp >= toItemLevel && ascensionLevel == -1) {
         ascensionLevel = kvp.key;
+        break;
       }
       continue;
     }
@@ -233,7 +238,7 @@ class CalculatorAscMaterialsItemBloc extends Bloc<CalculatorAscMaterialsItemEven
     }
 
     if (toItemLevel == itemAscensionLevelMap.entries.firstWhere((kvp) => kvp.key == ascensionLevel).value) {
-      return ascensionLevel;
+      return isAscended ? ascensionLevel : ascensionLevel - 1;
     }
 
     return ascensionLevel - 1;
@@ -252,7 +257,7 @@ class CalculatorAscMaterialsItemBloc extends Bloc<CalculatorAscMaterialsItemEven
     }
 
     final currentKvp = itemAscensionLevelMap.entries.firstWhere((kvp) => kvp.key == currentAscensionLevel);
-    final suggestedAscLevel = _getClosestAscensionLevel(currentItemLevel);
+    final suggestedAscLevel = _getClosestAscensionLevel(currentItemLevel, true);
 
     if (currentKvp.key != suggestedAscLevel) {
       return currentKvp.value;
@@ -304,16 +309,36 @@ class CalculatorAscMaterialsItemBloc extends Bloc<CalculatorAscMaterialsItemEven
     return skills;
   }
 
-  //TODO: FIX THIS METHOD
-  bool _canSkillBeIncreased(int skillLevel, int maxAscensionLevel, bool inclusive) {
-    final entry = skillAscensionMap.entries.firstWhere((kvp) => kvp.value.contains(skillLevel));
-    final isNotTheLast = entry.value.last != skillLevel;
-    if (inclusive) {
-      return entry.key <= maxAscensionLevel && isNotTheLast;
+  /// Checks if a skill can be increased.
+  ///
+  /// Keep in mind that the values provided  must be already validated
+  bool _canSkillBeIncreased(int skillLevel, int maxAscensionLevel) {
+    if (maxAscensionLevel < 0) {
+      throw Exception('The provided ascension level = $maxAscensionLevel is not valid');
     }
-    return entry.key < maxAscensionLevel && isNotTheLast;
+
+    if (maxAscensionLevel == 0 && skillLevel > minSkillLevel) {
+      return true;
+    } else if (maxAscensionLevel == 0 && skillLevel == minSkillLevel) {
+      return false;
+    }
+
+    final currentSkillEntry = skillAscensionMap.entries.firstWhere((kvp) => kvp.value.contains(skillLevel));
+    final ascensionEntry = skillAscensionMap.entries.firstWhere((kvp) => kvp.key == maxAscensionLevel);
+
+    //If the ascension level are different, just return true, since we don't need to make any validation in this method
+    if (ascensionEntry.key != currentSkillEntry.key) {
+      return true;
+    }
+
+    //otherwise, return true only if this skill is not the last in the map
+    final isNotTheLast = currentSkillEntry.value.last != skillLevel;
+    return isNotTheLast;
   }
 
+  /// This method checks if the provided skills are enabled or not.
+  ///
+  /// Keep in mind that the values provided  must be already validated
   Tuple4<bool, bool, bool, bool> _isSkillEnabled(
     int currentLevel,
     int desiredLevel,
@@ -321,20 +346,11 @@ class CalculatorAscMaterialsItemBloc extends Bloc<CalculatorAscMaterialsItemEven
     int desiredAscensionLevel,
   ) {
     final currentDecEnabled = currentLevel != minSkillLevel;
-    final currentIncEnabled = currentLevel != maxSkillLevel &&
-        _canSkillBeIncreased(currentLevel, currentAscensionLevel, skillAscensionMap.entries.first.key != currentAscensionLevel);
+    final currentIncEnabled = currentLevel != maxSkillLevel && _canSkillBeIncreased(currentLevel, currentAscensionLevel);
 
     final desiredDecEnabled = desiredLevel != minSkillLevel;
-    final desiredIncEnabled = desiredLevel != maxSkillLevel &&
-        _canSkillBeIncreased(desiredLevel, desiredAscensionLevel, skillAscensionMap.entries.first.key != desiredAscensionLevel);
+    final desiredIncEnabled = desiredLevel != maxSkillLevel && _canSkillBeIncreased(desiredLevel, desiredAscensionLevel);
 
     return Tuple4<bool, bool, bool, bool>(currentDecEnabled, currentIncEnabled, desiredDecEnabled, desiredIncEnabled);
-    //Current
-    // incrementIsDisabled: currentLevel == CalculatorAscMaterialsItemBloc.maxSkillLevel,
-    // decrementIsDisabled: currentLevel == CalculatorAscMaterialsItemBloc.minSkillLevel,
-
-    //Desired
-    // incrementIsDisabled: desiredLevel == CalculatorAscMaterialsItemBloc.maxSkillLevel,
-    // decrementIsDisabled: desiredLevel == CalculatorAscMaterialsItemBloc.minSkillLevel,
   }
 }
diff --git a/lib/domain/app_constants.dart b/lib/domain/app_constants.dart
index 83955b2bf..0df476aee 100644
--- a/lib/domain/app_constants.dart
+++ b/lib/domain/app_constants.dart
@@ -37,187 +37,199 @@ const skillAscensionMap = {
 };
 
 const characterExp = [
-  ItemExperience.forCharacters(1, 1000, 0),
-  ItemExperience.forCharacters(2, 1325, 1000),
-  ItemExperience.forCharacters(3, 1700, 2325),
-  ItemExperience.forCharacters(4, 2150, 4025),
-  ItemExperience.forCharacters(5, 2625, 6175),
-  ItemExperience.forCharacters(6, 3150, 8800),
-  ItemExperience.forCharacters(7, 3725, 11950),
-  ItemExperience.forCharacters(8, 4350, 15675),
-  ItemExperience.forCharacters(9, 5000, 20025),
-  ItemExperience.forCharacters(10, 5700, 25025),
-  ItemExperience.forCharacters(11, 6450, 30725),
-  ItemExperience.forCharacters(12, 7225, 37175),
-  ItemExperience.forCharacters(13, 8050, 44400),
-  ItemExperience.forCharacters(14, 8925, 52450),
-  ItemExperience.forCharacters(15, 9825, 61375),
-  ItemExperience.forCharacters(16, 10750, 71200),
-  ItemExperience.forCharacters(17, 11725, 81950),
-  ItemExperience.forCharacters(18, 12725, 93675),
-  ItemExperience.forCharacters(19, 13775, 106400),
-  ItemExperience.forCharacters(20, 14875, 120175),
-  ItemExperience.forCharacters(21, 16800, 135050),
-  ItemExperience.forCharacters(22, 18000, 151850),
-  ItemExperience.forCharacters(23, 19250, 169850),
-  ItemExperience.forCharacters(24, 20550, 189100),
-  ItemExperience.forCharacters(25, 21875, 209650),
-  ItemExperience.forCharacters(26, 23250, 231525),
-  ItemExperience.forCharacters(27, 24650, 254775),
-  ItemExperience.forCharacters(28, 26100, 279425),
-  ItemExperience.forCharacters(29, 27575, 305525),
-  ItemExperience.forCharacters(30, 29100, 333100),
-  ItemExperience.forCharacters(31, 30650, 362200),
-  ItemExperience.forCharacters(32, 32250, 392850),
-  ItemExperience.forCharacters(33, 33875, 425100),
-  ItemExperience.forCharacters(34, 35550, 458975),
-  ItemExperience.forCharacters(35, 37250, 494525),
-  ItemExperience.forCharacters(36, 38975, 531775),
-  ItemExperience.forCharacters(37, 40750, 570750),
-  ItemExperience.forCharacters(38, 42575, 611500),
-  ItemExperience.forCharacters(39, 44425, 654075),
-  ItemExperience.forCharacters(40, 46300, 698500),
-  ItemExperience.forCharacters(41, 50625, 744800),
-  ItemExperience.forCharacters(42, 52700, 795425),
-  ItemExperience.forCharacters(43, 54775, 848125),
-  ItemExperience.forCharacters(44, 56900, 902900),
-  ItemExperience.forCharacters(45, 59075, 959800),
-  ItemExperience.forCharacters(46, 61275, 1018875),
-  ItemExperience.forCharacters(47, 63525, 1080150),
-  ItemExperience.forCharacters(48, 65800, 1143675),
-  ItemExperience.forCharacters(49, 68125, 1209475),
-  ItemExperience.forCharacters(50, 70475, 1277600),
-  ItemExperience.forCharacters(51, 76500, 1348075),
-  ItemExperience.forCharacters(52, 79050, 1424575),
-  ItemExperience.forCharacters(53, 81650, 1503625),
-  ItemExperience.forCharacters(54, 84275, 1585275),
-  ItemExperience.forCharacters(55, 86950, 1669550),
-  ItemExperience.forCharacters(56, 89650, 1756500),
-  ItemExperience.forCharacters(57, 92400, 1846150),
-  ItemExperience.forCharacters(58, 95175, 1938550),
-  ItemExperience.forCharacters(59, 98000, 2033725),
-  ItemExperience.forCharacters(60, 100875, 2131725),
-  ItemExperience.forCharacters(61, 108950, 2232600),
-  ItemExperience.forCharacters(62, 112050, 2341550),
-  ItemExperience.forCharacters(63, 115175, 2453600),
-  ItemExperience.forCharacters(64, 118325, 2568775),
-  ItemExperience.forCharacters(65, 121525, 2687100),
-  ItemExperience.forCharacters(66, 124775, 2808625),
-  ItemExperience.forCharacters(67, 128075, 2933400),
-  ItemExperience.forCharacters(68, 131400, 3061475),
-  ItemExperience.forCharacters(69, 134775, 3192875),
-  ItemExperience.forCharacters(70, 138175, 3327650),
-  ItemExperience.forCharacters(71, 148700, 3465825),
-  ItemExperience.forCharacters(72, 152375, 3614525),
-  ItemExperience.forCharacters(73, 156075, 3766900),
-  ItemExperience.forCharacters(74, 159825, 3922975),
-  ItemExperience.forCharacters(75, 163600, 4082800),
-  ItemExperience.forCharacters(76, 167425, 4246400),
-  ItemExperience.forCharacters(77, 171300, 4413825),
-  ItemExperience.forCharacters(78, 175225, 4585125),
-  ItemExperience.forCharacters(79, 179175, 4760350),
-  ItemExperience.forCharacters(80, 183175, 4939525),
-  ItemExperience.forCharacters(81, 216225, 5122700),
-  ItemExperience.forCharacters(82, 243025, 5338925),
-  ItemExperience.forCharacters(83, 273100, 5581950),
-  ItemExperience.forCharacters(84, 306800, 5855050),
-  ItemExperience.forCharacters(85, 344600, 6161850),
-  ItemExperience.forCharacters(86, 386950, 6506450),
-  ItemExperience.forCharacters(87, 434425, 6893400),
-  ItemExperience.forCharacters(88, 487625, 7327825),
-  ItemExperience.forCharacters(89, 547200, 7815450),
-  ItemExperience.forCharacters(90, -1, 8362650),
+  ItemExperienceModel.forCharacters(1, 1000, 0),
+  ItemExperienceModel.forCharacters(2, 1325, 1000),
+  ItemExperienceModel.forCharacters(3, 1700, 2325),
+  ItemExperienceModel.forCharacters(4, 2150, 4025),
+  ItemExperienceModel.forCharacters(5, 2625, 6175),
+  ItemExperienceModel.forCharacters(6, 3150, 8800),
+  ItemExperienceModel.forCharacters(7, 3725, 11950),
+  ItemExperienceModel.forCharacters(8, 4350, 15675),
+  ItemExperienceModel.forCharacters(9, 5000, 20025),
+  ItemExperienceModel.forCharacters(10, 5700, 25025),
+  ItemExperienceModel.forCharacters(11, 6450, 30725),
+  ItemExperienceModel.forCharacters(12, 7225, 37175),
+  ItemExperienceModel.forCharacters(13, 8050, 44400),
+  ItemExperienceModel.forCharacters(14, 8925, 52450),
+  ItemExperienceModel.forCharacters(15, 9825, 61375),
+  ItemExperienceModel.forCharacters(16, 10750, 71200),
+  ItemExperienceModel.forCharacters(17, 11725, 81950),
+  ItemExperienceModel.forCharacters(18, 12725, 93675),
+  ItemExperienceModel.forCharacters(19, 13775, 106400),
+  ItemExperienceModel.forCharacters(20, 14875, 120175),
+  ItemExperienceModel.forCharacters(21, 16800, 135050),
+  ItemExperienceModel.forCharacters(22, 18000, 151850),
+  ItemExperienceModel.forCharacters(23, 19250, 169850),
+  ItemExperienceModel.forCharacters(24, 20550, 189100),
+  ItemExperienceModel.forCharacters(25, 21875, 209650),
+  ItemExperienceModel.forCharacters(26, 23250, 231525),
+  ItemExperienceModel.forCharacters(27, 24650, 254775),
+  ItemExperienceModel.forCharacters(28, 26100, 279425),
+  ItemExperienceModel.forCharacters(29, 27575, 305525),
+  ItemExperienceModel.forCharacters(30, 29100, 333100),
+  ItemExperienceModel.forCharacters(31, 30650, 362200),
+  ItemExperienceModel.forCharacters(32, 32250, 392850),
+  ItemExperienceModel.forCharacters(33, 33875, 425100),
+  ItemExperienceModel.forCharacters(34, 35550, 458975),
+  ItemExperienceModel.forCharacters(35, 37250, 494525),
+  ItemExperienceModel.forCharacters(36, 38975, 531775),
+  ItemExperienceModel.forCharacters(37, 40750, 570750),
+  ItemExperienceModel.forCharacters(38, 42575, 611500),
+  ItemExperienceModel.forCharacters(39, 44425, 654075),
+  ItemExperienceModel.forCharacters(40, 46300, 698500),
+  ItemExperienceModel.forCharacters(41, 50625, 744800),
+  ItemExperienceModel.forCharacters(42, 52700, 795425),
+  ItemExperienceModel.forCharacters(43, 54775, 848125),
+  ItemExperienceModel.forCharacters(44, 56900, 902900),
+  ItemExperienceModel.forCharacters(45, 59075, 959800),
+  ItemExperienceModel.forCharacters(46, 61275, 1018875),
+  ItemExperienceModel.forCharacters(47, 63525, 1080150),
+  ItemExperienceModel.forCharacters(48, 65800, 1143675),
+  ItemExperienceModel.forCharacters(49, 68125, 1209475),
+  ItemExperienceModel.forCharacters(50, 70475, 1277600),
+  ItemExperienceModel.forCharacters(51, 76500, 1348075),
+  ItemExperienceModel.forCharacters(52, 79050, 1424575),
+  ItemExperienceModel.forCharacters(53, 81650, 1503625),
+  ItemExperienceModel.forCharacters(54, 84275, 1585275),
+  ItemExperienceModel.forCharacters(55, 86950, 1669550),
+  ItemExperienceModel.forCharacters(56, 89650, 1756500),
+  ItemExperienceModel.forCharacters(57, 92400, 1846150),
+  ItemExperienceModel.forCharacters(58, 95175, 1938550),
+  ItemExperienceModel.forCharacters(59, 98000, 2033725),
+  ItemExperienceModel.forCharacters(60, 100875, 2131725),
+  ItemExperienceModel.forCharacters(61, 108950, 2232600),
+  ItemExperienceModel.forCharacters(62, 112050, 2341550),
+  ItemExperienceModel.forCharacters(63, 115175, 2453600),
+  ItemExperienceModel.forCharacters(64, 118325, 2568775),
+  ItemExperienceModel.forCharacters(65, 121525, 2687100),
+  ItemExperienceModel.forCharacters(66, 124775, 2808625),
+  ItemExperienceModel.forCharacters(67, 128075, 2933400),
+  ItemExperienceModel.forCharacters(68, 131400, 3061475),
+  ItemExperienceModel.forCharacters(69, 134775, 3192875),
+  ItemExperienceModel.forCharacters(70, 138175, 3327650),
+  ItemExperienceModel.forCharacters(71, 148700, 3465825),
+  ItemExperienceModel.forCharacters(72, 152375, 3614525),
+  ItemExperienceModel.forCharacters(73, 156075, 3766900),
+  ItemExperienceModel.forCharacters(74, 159825, 3922975),
+  ItemExperienceModel.forCharacters(75, 163600, 4082800),
+  ItemExperienceModel.forCharacters(76, 167425, 4246400),
+  ItemExperienceModel.forCharacters(77, 171300, 4413825),
+  ItemExperienceModel.forCharacters(78, 175225, 4585125),
+  ItemExperienceModel.forCharacters(79, 179175, 4760350),
+  ItemExperienceModel.forCharacters(80, 183175, 4939525),
+  ItemExperienceModel.forCharacters(81, 216225, 5122700),
+  ItemExperienceModel.forCharacters(82, 243025, 5338925),
+  ItemExperienceModel.forCharacters(83, 273100, 5581950),
+  ItemExperienceModel.forCharacters(84, 306800, 5855050),
+  ItemExperienceModel.forCharacters(85, 344600, 6161850),
+  ItemExperienceModel.forCharacters(86, 386950, 6506450),
+  ItemExperienceModel.forCharacters(87, 434425, 6893400),
+  ItemExperienceModel.forCharacters(88, 487625, 7327825),
+  ItemExperienceModel.forCharacters(89, 547200, 7815450),
+  ItemExperienceModel.forCharacters(90, -1, 8362650),
 ];
 
 const weaponExp = [
-  ItemExperience.forWeapons(1, 600, 0),
-  ItemExperience.forWeapons(2, 950, 600),
-  ItemExperience.forWeapons(3, 1350, 1550),
-  ItemExperience.forWeapons(4, 1800, 2900),
-  ItemExperience.forWeapons(5, 2325, 4700),
-  ItemExperience.forWeapons(6, 2925, 7025),
-  ItemExperience.forWeapons(7, 3525, 9950),
-  ItemExperience.forWeapons(8, 4200, 13475),
-  ItemExperience.forWeapons(9, 4950, 17675),
-  ItemExperience.forWeapons(10, 5700, 22625),
-  ItemExperience.forWeapons(11, 6525, 28325),
-  ItemExperience.forWeapons(12, 7400, 34850),
-  ItemExperience.forWeapons(13, 8300, 42250),
-  ItemExperience.forWeapons(14, 9225, 50550),
-  ItemExperience.forWeapons(15, 10200, 59775),
-  ItemExperience.forWeapons(16, 11250, 69975),
-  ItemExperience.forWeapons(17, 12300, 81225),
-  ItemExperience.forWeapons(18, 13425, 93525),
-  ItemExperience.forWeapons(19, 14600, 106950),
-  ItemExperience.forWeapons(20, 15750, 121550),
-  ItemExperience.forWeapons(21, 17850, 137300),
-  ItemExperience.forWeapons(22, 19175, 155150),
-  ItemExperience.forWeapons(23, 20550, 174325),
-  ItemExperience.forWeapons(24, 21975, 194875),
-  ItemExperience.forWeapons(25, 23450, 216850),
-  ItemExperience.forWeapons(26, 24950, 240300),
-  ItemExperience.forWeapons(27, 26475, 265250),
-  ItemExperience.forWeapons(28, 28050, 291725),
-  ItemExperience.forWeapons(29, 29675, 319775),
-  ItemExperience.forWeapons(30, 31350, 349450),
-  ItemExperience.forWeapons(31, 33050, 380800),
-  ItemExperience.forWeapons(32, 34800, 413850),
-  ItemExperience.forWeapons(33, 36575, 448650),
-  ItemExperience.forWeapons(34, 38400, 485225),
-  ItemExperience.forWeapons(35, 40250, 523625),
-  ItemExperience.forWeapons(36, 42150, 563875),
-  ItemExperience.forWeapons(37, 44100, 606025),
-  ItemExperience.forWeapons(38, 46100, 650125),
-  ItemExperience.forWeapons(39, 48125, 696225),
-  ItemExperience.forWeapons(40, 50150, 744350),
-  ItemExperience.forWeapons(41, 54875, 794500),
-  ItemExperience.forWeapons(42, 57125, 849375),
-  ItemExperience.forWeapons(43, 59400, 906500),
-  ItemExperience.forWeapons(44, 61725, 965900),
-  ItemExperience.forWeapons(45, 64100, 1027625),
-  ItemExperience.forWeapons(46, 66500, 1091725),
-  ItemExperience.forWeapons(47, 68925, 1158225),
-  ItemExperience.forWeapons(48, 71400, 1227150),
-  ItemExperience.forWeapons(49, 73950, 1298550),
-  ItemExperience.forWeapons(50, 76500, 1372500),
-  ItemExperience.forWeapons(51, 83075, 1449000),
-  ItemExperience.forWeapons(52, 85850, 1532075),
-  ItemExperience.forWeapons(53, 88650, 1617925),
-  ItemExperience.forWeapons(54, 91550, 1706575),
-  ItemExperience.forWeapons(55, 94425, 1798125),
-  ItemExperience.forWeapons(56, 97400, 1892550),
-  ItemExperience.forWeapons(57, 100350, 1989950),
-  ItemExperience.forWeapons(58, 103400, 2090300),
-  ItemExperience.forWeapons(59, 106475, 2193700),
-  ItemExperience.forWeapons(60, 109575, 2300175),
-  ItemExperience.forWeapons(61, 118350, 2409750),
-  ItemExperience.forWeapons(62, 121700, 2528100),
-  ItemExperience.forWeapons(63, 125100, 2649800),
-  ItemExperience.forWeapons(64, 128550, 2774900),
-  ItemExperience.forWeapons(65, 132050, 2903450),
-  ItemExperience.forWeapons(66, 135575, 3035500),
-  ItemExperience.forWeapons(67, 139125, 3171075),
-  ItemExperience.forWeapons(68, 142725, 3310200),
-  ItemExperience.forWeapons(69, 146375, 3452925),
-  ItemExperience.forWeapons(70, 150075, 3599300),
-  ItemExperience.forWeapons(71, 161525, 3749375),
-  ItemExperience.forWeapons(72, 165500, 3910900),
-  ItemExperience.forWeapons(73, 169500, 4076400),
-  ItemExperience.forWeapons(74, 173550, 4245900),
-  ItemExperience.forWeapons(75, 177650, 4419450),
-  ItemExperience.forWeapons(76, 181800, 4597100),
-  ItemExperience.forWeapons(77, 186000, 4778900),
-  ItemExperience.forWeapons(78, 190250, 4964900),
-  ItemExperience.forWeapons(79, 194525, 5155150),
-  ItemExperience.forWeapons(80, 198875, 5349675),
-  ItemExperience.forWeapons(81, 234725, 5548550),
-  ItemExperience.forWeapons(82, 263825, 5783275),
-  ItemExperience.forWeapons(83, 296400, 6047100),
-  ItemExperience.forWeapons(84, 332975, 6343500),
-  ItemExperience.forWeapons(85, 373950, 6676475),
-  ItemExperience.forWeapons(86, 419925, 7050425),
-  ItemExperience.forWeapons(87, 471375, 7470350),
-  ItemExperience.forWeapons(88, 529050, 7941725),
-  ItemExperience.forWeapons(89, 593675, 8470775),
-  ItemExperience.forWeapons(90, -1, 9064450),
+  ItemExperienceModel.forWeapons(1, 600, 0),
+  ItemExperienceModel.forWeapons(2, 950, 600),
+  ItemExperienceModel.forWeapons(3, 1350, 1550),
+  ItemExperienceModel.forWeapons(4, 1800, 2900),
+  ItemExperienceModel.forWeapons(5, 2325, 4700),
+  ItemExperienceModel.forWeapons(6, 2925, 7025),
+  ItemExperienceModel.forWeapons(7, 3525, 9950),
+  ItemExperienceModel.forWeapons(8, 4200, 13475),
+  ItemExperienceModel.forWeapons(9, 4950, 17675),
+  ItemExperienceModel.forWeapons(10, 5700, 22625),
+  ItemExperienceModel.forWeapons(11, 6525, 28325),
+  ItemExperienceModel.forWeapons(12, 7400, 34850),
+  ItemExperienceModel.forWeapons(13, 8300, 42250),
+  ItemExperienceModel.forWeapons(14, 9225, 50550),
+  ItemExperienceModel.forWeapons(15, 10200, 59775),
+  ItemExperienceModel.forWeapons(16, 11250, 69975),
+  ItemExperienceModel.forWeapons(17, 12300, 81225),
+  ItemExperienceModel.forWeapons(18, 13425, 93525),
+  ItemExperienceModel.forWeapons(19, 14600, 106950),
+  ItemExperienceModel.forWeapons(20, 15750, 121550),
+  ItemExperienceModel.forWeapons(21, 17850, 137300),
+  ItemExperienceModel.forWeapons(22, 19175, 155150),
+  ItemExperienceModel.forWeapons(23, 20550, 174325),
+  ItemExperienceModel.forWeapons(24, 21975, 194875),
+  ItemExperienceModel.forWeapons(25, 23450, 216850),
+  ItemExperienceModel.forWeapons(26, 24950, 240300),
+  ItemExperienceModel.forWeapons(27, 26475, 265250),
+  ItemExperienceModel.forWeapons(28, 28050, 291725),
+  ItemExperienceModel.forWeapons(29, 29675, 319775),
+  ItemExperienceModel.forWeapons(30, 31350, 349450),
+  ItemExperienceModel.forWeapons(31, 33050, 380800),
+  ItemExperienceModel.forWeapons(32, 34800, 413850),
+  ItemExperienceModel.forWeapons(33, 36575, 448650),
+  ItemExperienceModel.forWeapons(34, 38400, 485225),
+  ItemExperienceModel.forWeapons(35, 40250, 523625),
+  ItemExperienceModel.forWeapons(36, 42150, 563875),
+  ItemExperienceModel.forWeapons(37, 44100, 606025),
+  ItemExperienceModel.forWeapons(38, 46100, 650125),
+  ItemExperienceModel.forWeapons(39, 48125, 696225),
+  ItemExperienceModel.forWeapons(40, 50150, 744350),
+  ItemExperienceModel.forWeapons(41, 54875, 794500),
+  ItemExperienceModel.forWeapons(42, 57125, 849375),
+  ItemExperienceModel.forWeapons(43, 59400, 906500),
+  ItemExperienceModel.forWeapons(44, 61725, 965900),
+  ItemExperienceModel.forWeapons(45, 64100, 1027625),
+  ItemExperienceModel.forWeapons(46, 66500, 1091725),
+  ItemExperienceModel.forWeapons(47, 68925, 1158225),
+  ItemExperienceModel.forWeapons(48, 71400, 1227150),
+  ItemExperienceModel.forWeapons(49, 73950, 1298550),
+  ItemExperienceModel.forWeapons(50, 76500, 1372500),
+  ItemExperienceModel.forWeapons(51, 83075, 1449000),
+  ItemExperienceModel.forWeapons(52, 85850, 1532075),
+  ItemExperienceModel.forWeapons(53, 88650, 1617925),
+  ItemExperienceModel.forWeapons(54, 91550, 1706575),
+  ItemExperienceModel.forWeapons(55, 94425, 1798125),
+  ItemExperienceModel.forWeapons(56, 97400, 1892550),
+  ItemExperienceModel.forWeapons(57, 100350, 1989950),
+  ItemExperienceModel.forWeapons(58, 103400, 2090300),
+  ItemExperienceModel.forWeapons(59, 106475, 2193700),
+  ItemExperienceModel.forWeapons(60, 109575, 2300175),
+  ItemExperienceModel.forWeapons(61, 118350, 2409750),
+  ItemExperienceModel.forWeapons(62, 121700, 2528100),
+  ItemExperienceModel.forWeapons(63, 125100, 2649800),
+  ItemExperienceModel.forWeapons(64, 128550, 2774900),
+  ItemExperienceModel.forWeapons(65, 132050, 2903450),
+  ItemExperienceModel.forWeapons(66, 135575, 3035500),
+  ItemExperienceModel.forWeapons(67, 139125, 3171075),
+  ItemExperienceModel.forWeapons(68, 142725, 3310200),
+  ItemExperienceModel.forWeapons(69, 146375, 3452925),
+  ItemExperienceModel.forWeapons(70, 150075, 3599300),
+  ItemExperienceModel.forWeapons(71, 161525, 3749375),
+  ItemExperienceModel.forWeapons(72, 165500, 3910900),
+  ItemExperienceModel.forWeapons(73, 169500, 4076400),
+  ItemExperienceModel.forWeapons(74, 173550, 4245900),
+  ItemExperienceModel.forWeapons(75, 177650, 4419450),
+  ItemExperienceModel.forWeapons(76, 181800, 4597100),
+  ItemExperienceModel.forWeapons(77, 186000, 4778900),
+  ItemExperienceModel.forWeapons(78, 190250, 4964900),
+  ItemExperienceModel.forWeapons(79, 194525, 5155150),
+  ItemExperienceModel.forWeapons(80, 198875, 5349675),
+  ItemExperienceModel.forWeapons(81, 234725, 5548550),
+  ItemExperienceModel.forWeapons(82, 263825, 5783275),
+  ItemExperienceModel.forWeapons(83, 296400, 6047100),
+  ItemExperienceModel.forWeapons(84, 332975, 6343500),
+  ItemExperienceModel.forWeapons(85, 373950, 6676475),
+  ItemExperienceModel.forWeapons(86, 419925, 7050425),
+  ItemExperienceModel.forWeapons(87, 471375, 7470350),
+  ItemExperienceModel.forWeapons(88, 529050, 7941725),
+  ItemExperienceModel.forWeapons(89, 593675, 8470775),
+  ItemExperienceModel.forWeapons(90, -1, 9064450),
 ];
+
+double getItemTotalExp(int currentLevel, int desiredLevel, bool forCharacters) {
+  if (currentLevel > desiredLevel) {
+    throw Exception('CurrentLevel = $currentLevel cannot be greater than DesiredLevel = $desiredLevel');
+  }
+
+  //here remember that the upper bound must not be included, that's why we use item.level < desiredLevel
+  return (forCharacters ? characterExp : weaponExp)
+      .where((item) => item.level >= currentLevel && item.level < desiredLevel)
+      .map((item) => item.nextLevelExp)
+      .fold(0, (previous, current) => previous + current);
+}
diff --git a/lib/domain/assets.dart b/lib/domain/assets.dart
index 36a456727..45242110b 100644
--- a/lib/domain/assets.dart
+++ b/lib/domain/assets.dart
@@ -38,6 +38,9 @@ class Assets {
   static String currencyBasePath = '$itemsBasePath/currency';
   static String othersBasePath = '$itemsBasePath/others';
   static String ingredientsBasePath = '$itemsBasePath/ingredients';
+  static String experienceBasePath = '$itemsBasePath/experience';
+
+  //Others
   static String otherImgsBasePath = 'assets/others';
 
   static String getArtifactPath(String name) => '$artifactsBasePath/$name';
@@ -68,6 +71,7 @@ class Assets {
   static String getCurrencyMaterialPath(String name) => '$currencyBasePath/$name';
   static String getOtherMaterialPath(String name) => '$othersBasePath/$name';
   static String getIngredientMaterialPath(String name) => '$ingredientsBasePath/$name';
+  static String getExperienceMaterialPath(String name) => '$experienceBasePath/$name';
 
   static String getMaterialPath(String name, MaterialType type) {
     switch (type) {
@@ -91,6 +95,9 @@ class Assets {
         return getOtherMaterialPath(name);
       case MaterialType.ingredient:
         return getIngredientMaterialPath(name);
+      case MaterialType.expCharacter:
+      case MaterialType.expWeapon:
+        return getExperienceMaterialPath(name);
       default:
         throw Exception('Invalid material type = $type');
     }
diff --git a/lib/domain/enums/ascension_material_summary_type.dart b/lib/domain/enums/ascension_material_summary_type.dart
index 679739d01..8e647a03d 100644
--- a/lib/domain/enums/ascension_material_summary_type.dart
+++ b/lib/domain/enums/ascension_material_summary_type.dart
@@ -5,4 +5,5 @@ enum AscensionMaterialSummaryType {
   day,
   currency,
   others,
+  exp,
 }