diff --git a/lib/domain/enums/chart_type.dart b/lib/domain/enums/chart_type.dart
new file mode 100644
index 000000000..5df6dd87c
--- /dev/null
+++ b/lib/domain/enums/chart_type.dart
@@ -0,0 +1,11 @@
+enum ChartType {
+  topFiveStarCharacterMostReruns,
+  topFiveStarWeaponMostReruns,
+  topFourStarCharacterMostReruns,
+  topFourStarWeaponMostReruns,
+  topFiveStarCharacterLeastReruns,
+  topFiveStarWeaponLeastReruns,
+  topFourStarCharacterLeastReruns,
+  topFourStarWeaponLeastReruns,
+  characterBirthdays,
+}
diff --git a/lib/domain/enums/enums.dart b/lib/domain/enums/enums.dart
index ed1e6b9d8..2da2a7e85 100644
--- a/lib/domain/enums/enums.dart
+++ b/lib/domain/enums/enums.dart
@@ -16,6 +16,7 @@ export 'character_role_subtype.dart';
 export 'character_role_type.dart';
 export 'character_skill_ability_type.dart';
 export 'character_skill_type.dart';
+export 'chart_type.dart';
 export 'day_type.dart';
 export 'element_type.dart';
 export 'end_drawer_item_type.dart';
diff --git a/lib/domain/models/charts/chart_birthday_month_model.dart b/lib/domain/models/charts/chart_birthday_month_model.dart
new file mode 100644
index 000000000..1ae219b0c
--- /dev/null
+++ b/lib/domain/models/charts/chart_birthday_month_model.dart
@@ -0,0 +1,12 @@
+import 'package:freezed_annotation/freezed_annotation.dart';
+import 'package:shiori/domain/models/items/item_common.dart';
+
+part 'chart_birthday_month_model.freezed.dart';
+
+@freezed
+class ChartBirthdayMonthModel with _$ChartBirthdayMonthModel {
+  const factory ChartBirthdayMonthModel({
+    required int month,
+    required List<ItemCommonWithName> items,
+  }) = _ChartBirthdayMonthModel;
+}
diff --git a/lib/domain/models/charts/chart_element_item_model.dart b/lib/domain/models/charts/chart_element_item_model.dart
new file mode 100644
index 000000000..acd58be71
--- /dev/null
+++ b/lib/domain/models/charts/chart_element_item_model.dart
@@ -0,0 +1,14 @@
+import 'dart:math';
+
+import 'package:freezed_annotation/freezed_annotation.dart';
+import 'package:shiori/domain/enums/enums.dart';
+
+part 'chart_element_item_model.freezed.dart';
+
+@freezed
+class ChartElementItemModel with _$ChartElementItemModel {
+  const factory ChartElementItemModel({
+    required ElementType type,
+    required List<Point<double>> points,
+  }) = _ChartElementItemModel;
+}
diff --git a/lib/domain/models/charts/chart_top_item_model.dart b/lib/domain/models/charts/chart_top_item_model.dart
new file mode 100644
index 000000000..77d6dc10a
--- /dev/null
+++ b/lib/domain/models/charts/chart_top_item_model.dart
@@ -0,0 +1,15 @@
+import 'package:freezed_annotation/freezed_annotation.dart';
+import 'package:shiori/domain/enums/enums.dart';
+
+part 'chart_top_item_model.freezed.dart';
+
+@freezed
+class ChartTopItemModel with _$ChartTopItemModel {
+  const factory ChartTopItemModel({
+    required String key,
+    required ChartType type,
+    required String name,
+    required int value,
+    required double percentage,
+  }) = _ChartTopItemModel;
+}
diff --git a/lib/domain/models/models.dart b/lib/domain/models/models.dart
index d9b9c2692..cdbe6c3b1 100644
--- a/lib/domain/models/models.dart
+++ b/lib/domain/models/models.dart
@@ -14,6 +14,9 @@ export 'characters/character_multi_talent_ascension_model.dart';
 export 'characters/character_passive_talent_model.dart';
 export 'characters/character_skill_card_model.dart';
 export 'characters/character_talent_ascension_model.dart';
+export 'charts/chart_birthday_month_model.dart';
+export 'charts/chart_element_item_model.dart';
+export 'charts/chart_top_item_model.dart';
 export 'custom_builds/custom_build_artifact_model.dart';
 export 'custom_builds/custom_build_model.dart';
 export 'custom_builds/custom_build_note_model.dart';
diff --git a/lib/domain/services/genshin_service.dart b/lib/domain/services/genshin_service.dart
index 6f5b9e518..b1bee1bac 100644
--- a/lib/domain/services/genshin_service.dart
+++ b/lib/domain/services/genshin_service.dart
@@ -92,4 +92,8 @@ abstract class GenshinService {
   List<BannerHistoryItemModel> getBannerHistory(BannerHistoryItemType type);
   List<BannerHistoryPeriodModel> getBanners(double version);
   List<ItemReleaseHistoryModel> getItemReleaseHistory(String itemKey);
+
+  List<ChartTopItemModel> getTopCharts(ChartType type);
+  List<ChartBirthdayMonthModel> getCharacterBirthdaysForCharts();
+  List<ChartElementItemModel> getElementsForCharts();
 }
diff --git a/lib/domain/services/telemetry_service.dart b/lib/domain/services/telemetry_service.dart
index c20f3a810..3b8cdb1c8 100644
--- a/lib/domain/services/telemetry_service.dart
+++ b/lib/domain/services/telemetry_service.dart
@@ -67,4 +67,6 @@ abstract class TelemetryService {
   Future<void> trackBannerHistoryItemOpened(double version);
 
   Future<void> trackItemReleaseHistoryOpened(String itemKey);
+
+  Future<void> trackChartsOpened();
 }