diff --git a/lib/application/birthdays_per_month/birthdays_per_month_bloc.dart b/lib/application/birthdays_per_month/birthdays_per_month_bloc.dart
new file mode 100644
index 000000000..174819261
--- /dev/null
+++ b/lib/application/birthdays_per_month/birthdays_per_month_bloc.dart
@@ -0,0 +1,30 @@
+import 'package:bloc/bloc.dart';
+import 'package:freezed_annotation/freezed_annotation.dart';
+import 'package:shiori/domain/models/models.dart';
+import 'package:shiori/domain/services/genshin_service.dart';
+import 'package:shiori/domain/services/telemetry_service.dart';
+
+part 'birthdays_per_month_bloc.freezed.dart';
+part 'birthdays_per_month_event.dart';
+part 'birthdays_per_month_state.dart';
+
+class BirthdaysPerMonthBloc extends Bloc<BirthdaysPerMonthEvent, BirthdaysPerMonthState> {
+  final GenshinService _genshinService;
+  final TelemetryService _telemetryService;
+
+  BirthdaysPerMonthBloc(this._genshinService, this._telemetryService) : super(const BirthdaysPerMonthState.loading());
+
+  @override
+  Stream<BirthdaysPerMonthState> mapEventToState(BirthdaysPerMonthEvent event) async* {
+    final s = await event.map(
+      init: (e) => _init(e.month),
+    );
+    yield s;
+  }
+
+  Future<BirthdaysPerMonthState> _init(int month) async {
+    await _telemetryService.trackBirthdaysPerMonthOpened(month);
+    final characters = _genshinService.getCharacterBirthdays(month: month);
+    return BirthdaysPerMonthState.loaded(month: month, characters: characters);
+  }
+}
diff --git a/lib/application/birthdays_per_month/birthdays_per_month_event.dart b/lib/application/birthdays_per_month/birthdays_per_month_event.dart
new file mode 100644
index 000000000..fbc9d4e5c
--- /dev/null
+++ b/lib/application/birthdays_per_month/birthdays_per_month_event.dart
@@ -0,0 +1,8 @@
+part of 'birthdays_per_month_bloc.dart';
+
+@freezed
+class BirthdaysPerMonthEvent with _$BirthdaysPerMonthEvent {
+  const factory BirthdaysPerMonthEvent.init({
+    required int month,
+  }) = _BirthdaysPerMonthEvent;
+}
diff --git a/lib/application/birthdays_per_month/birthdays_per_month_state.dart b/lib/application/birthdays_per_month/birthdays_per_month_state.dart
new file mode 100644
index 000000000..aa4f6c370
--- /dev/null
+++ b/lib/application/birthdays_per_month/birthdays_per_month_state.dart
@@ -0,0 +1,11 @@
+part of 'birthdays_per_month_bloc.dart';
+
+@freezed
+class BirthdaysPerMonthState with _$BirthdaysPerMonthState {
+  const factory BirthdaysPerMonthState.loading() = _LoadingState;
+
+  const factory BirthdaysPerMonthState.loaded({
+    required int month,
+    required List<CharacterBirthdayModel> characters,
+  }) = _LoadedState;
+}
diff --git a/lib/application/bloc.dart b/lib/application/bloc.dart
index 99a0cd2cd..b8d21a5d6 100644
--- a/lib/application/bloc.dart
+++ b/lib/application/bloc.dart
@@ -2,6 +2,7 @@ export 'artifact/artifact_bloc.dart';
 export 'artifacts/artifacts_bloc.dart';
 export 'banner_history/banner_history_bloc.dart';
 export 'banner_history_item/banner_history_item_bloc.dart';
+export 'birthdays_per_month/birthdays_per_month_bloc.dart';
 export 'calculator_asc_materials/material_item/calculator_asc_materials_item_bloc.dart';
 export 'calculator_asc_materials/material_item_quantity/calculator_asc_materials_item_update_quantity_bloc.dart';
 export 'calculator_asc_materials/materials/calculator_asc_materials_bloc.dart';