diff --git a/komga-webui/src/locales/en.json b/komga-webui/src/locales/en.json
index 740ed6569..d953cc87e 100644
--- a/komga-webui/src/locales/en.json
+++ b/komga-webui/src/locales/en.json
@@ -1034,10 +1034,17 @@
     "more": "More titles"
   },
   "ui_settings": {
+    "general": "General",
     "label_oauth2_auto_login": "Automatic OAuth2 login",
     "label_oauth2_hide_login": "Hide login fields if OAuth2 is enabled",
     "label_poster_blur_unread": "Blur poster for unread books and series",
     "label_poster_stretch": "Stretch poster to fit card",
+    "label_series_groups": "Series grouping",
+    "section_oauth2": "OAuth2",
+    "series_groups": {
+      "alpha": "Alphabetical",
+      "japanese": "Gojūon (Japanese)"
+    },
     "tooltip_oauth2_auto_login": "Requires a single OAuth2 provider, and 'hide login fields' enabled"
   },
   "updates": {
diff --git a/komga-webui/src/types/komga-clientsettings.ts b/komga-webui/src/types/komga-clientsettings.ts
index 596efecaa..6e5ecd2d8 100644
--- a/komga-webui/src/types/komga-clientsettings.ts
+++ b/komga-webui/src/types/komga-clientsettings.ts
@@ -18,6 +18,7 @@ export enum CLIENT_SETTING {
   WEBUI_POSTER_STRETCH = 'webui.poster.stretch',
   WEBUI_POSTER_BLUR_UNREAD = 'webui.poster.blur_unread',
   WEBUI_LIBRARIES = 'webui.libraries',
+  WEBUI_SERIES_GROUPS = 'webui.series_groups',
 }
 
 export interface ClientSettingLibrary {
@@ -29,3 +30,85 @@ export interface ClientSettingLibraryUpdate {
   libraryId: string,
   patch: ClientSettingLibrary,
 }
+
+export interface ClientSettingsSeriesGroup {
+  name: string,
+  groups: Record<string, string[]>
+}
+
+export const SERIES_GROUP_ALPHA = {
+  name: 'alpha',
+  groups: {
+    'A': ['A'],
+    'B': ['B'],
+    'C': ['C'],
+    'D': ['D'],
+    'E': ['E'],
+    'F': ['F'],
+    'G': ['G'],
+    'H': ['H'],
+    'I': ['I'],
+    'J': ['J'],
+    'K': ['K'],
+    'L': ['L'],
+    'M': ['M'],
+    'N': ['N'],
+    'O': ['O'],
+    'P': ['P'],
+    'Q': ['Q'],
+    'R': ['R'],
+    'S': ['S'],
+    'T': ['T'],
+    'U': ['U'],
+    'V': ['V'],
+    'W': ['W'],
+    'X': ['X'],
+    'Y': ['Y'],
+    'Z': ['Z'],
+  },
+} as ClientSettingsSeriesGroup
+
+export const SERIES_GROUP_JAPANESE = {
+  name: 'japanese',
+  groups: {
+    'あ': ['あ', 'ア'],
+    'い': ['い', 'イ'],
+    'う': ['う', 'ゔ', 'ウ', 'ヴ'],
+    'え': ['え', 'エ'],
+    'お': ['お', 'オ'],
+    'か': ['か', 'が', 'カ', 'ガ'],
+    'き': ['き', 'ぎ', 'キ', 'ギ'],
+    'く': ['く', 'ぐ', 'ク', 'グ'],
+    'け': ['け', 'げ', 'ケ', 'ゲ'],
+    'こ': ['こ', 'ご', 'コ', 'ゴ'],
+    'さ': ['さ', 'ざ', 'サ', 'ザ'],
+    'し': ['し', 'じ', 'シ', 'ジ'],
+    'す': ['す', 'ず', 'ス', 'ズ'],
+    'せ': ['せ', 'ぜ', 'セ', 'ゼ'],
+    'そ': ['そ', 'ぞ', 'ソ', 'ゾ'],
+    'た': ['た', 'だ', 'タ', 'ダ'],
+    'ち': ['ち', 'ぢ', 'チ', 'ヂ'],
+    'つ': ['つ', 'づ', 'ツ', 'ズ'],
+    'て': ['て', 'で', 'テ', 'デ'],
+    'と': ['と', 'ど', 'ト', 'ド'],
+    'は': ['は', 'ば', 'ぱ', 'ハ', 'バ', 'パ'],
+    'ひ': ['ひ', 'び', 'ぴ', 'ヒ', 'ビ', 'ピ'],
+    'ふ': ['ふ', 'ぶ', 'ぷ', 'フ', 'ブ', 'プ'],
+    'へ': ['へ', 'べ', 'ぺ', 'ヘ', 'ベ', 'ベ'],
+    'ほ': ['ほ', 'ぼ', 'ぽ', 'ホ', 'ボ', 'ポ'],
+    'ま': ['ま', 'マ'],
+    'み': ['み', 'ミ'],
+    'む': ['む', 'ム'],
+    'め': ['め', 'メ'],
+    'も': ['も', 'モ'],
+    'や': ['や', 'ヤ'],
+    'ゆ': ['ゆ', 'ユ'],
+    'よ': ['よ', 'ヨ'],
+    'ら': ['ら', 'ラ'],
+    'り': ['り', 'リ'],
+    'る': ['る', 'ル'],
+    'れ': ['れ', 'レ'],
+    'ろ': ['ろ', 'ロ'],
+    'わ': ['わ', 'ワ'],
+  },
+} as ClientSettingsSeriesGroup
diff --git a/komga-webui/src/views/BrowseLibraries.vue b/komga-webui/src/views/BrowseLibraries.vue
index d88de0b5f..19963aebb 100644
--- a/komga-webui/src/views/BrowseLibraries.vue
+++ b/komga-webui/src/views/BrowseLibraries.vue
@@ -74,7 +74,7 @@
     <v-container fluid>
       <alphabetical-navigation
         class="text-center"
-        :symbols="alphabeticalNavigation"
+        :symbols="seriesGroupingKeys"
         :selected="selectedSymbol"
         :group-count="seriesGroups"
         @clicked="filterByStarting"
@@ -209,6 +209,7 @@ import {
   NameValue,
 } from '@/types/filter'
 import LibrariesActionsMenu from '@/components/menus/LibrariesActionsMenu.vue'
+import {CLIENT_SETTING, ClientSettingsSeriesGroup, SERIES_GROUP_ALPHA} from '@/types/komga-clientsettings'
 
 export default Vue.extend({
   name: 'BrowseLibraries',
@@ -231,7 +232,6 @@ export default Vue.extend({
     return {
       series: [] as SeriesDto[],
       seriesGroups: [] as GroupCountDto[],
-      alphabeticalNavigation: ['ALL', '#', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z'],
       selectedSymbol: 'ALL',
       selectedSeries: [] as SeriesDto[],
       page: 1,
@@ -326,6 +326,21 @@ export default Vue.extend({
     next()
   },
   computed: {
+    seriesGrouping(): Record<string, string[]> {
+      let s: Record<string, string[]>
+      try {
+        s = (JSON.parse(this.$store.getters.getClientSettings[CLIENT_SETTING.WEBUI_SERIES_GROUPS].value) as ClientSettingsSeriesGroup).groups
+      } catch (_) {
+        s = SERIES_GROUP_ALPHA.groups
+      }
+      return s
+    },
+    seriesGroupingKeys(): string[] {
+      return ['ALL', '#', ...this.$_.keys(this.seriesGrouping)]
+    },
+    seriesGroupingValues(): string[] {
+      return this.$_(this.seriesGrouping).values().flatten().map(this.$_.lowerCase).toArray() as unknown as string[]
+    },
     library(): LibraryDto | undefined {
       return this.getLibraryLazy(this.libraryId)
     },
@@ -337,11 +352,13 @@ export default Vue.extend({
     symbolCondition(): SearchConditionSeries | undefined {
       if (this.selectedSymbol === 'ALL') return undefined
       if (this.selectedSymbol === '#') return new SearchConditionAllOfSeries(
-        this.alphabeticalNavigation
-          .filter(it => it !== 'ALL' && it !== '#')
+        this.seriesGroupingValues
           .map(it => new SearchConditionTitleSort(new SearchOperatorDoesNotBeginWith(it))),
       )
-      return new SearchConditionTitleSort(new SearchOperatorBeginsWith(this.selectedSymbol))
+      return new SearchConditionAnyOfSeries(
+        this.seriesGrouping[this.selectedSymbol]
+          .map(it => new SearchConditionTitleSort(new SearchOperatorBeginsWith(it))),
+      )
     },
     itemContext(): ItemContext[] {
       if (this.sortActive.key === 'booksMetadata.releaseDate') return [ItemContext.RELEASE_DATE]
@@ -737,11 +754,11 @@ export default Vue.extend({
         condition: new SearchConditionAllOfSeries(groupConditions),
       } as SeriesSearch)
       const nonAlpha = seriesGroups
-        .filter((g) => !(/[a-zA-Z]/).test(g.group))
+        .filter((g) => !this.seriesGroupingValues.includes(g.group))
         .reduce((a, b) => a + b.count, 0)
       const all = seriesGroups.reduce((a, b) => a + b.count, 0)
       this.seriesGroups = [
-        ...seriesGroups.filter((g) => (/[a-zA-Z]/).test(g.group)),
+        ...seriesGroups.filter((g) => this.seriesGroupingValues.includes(g.group)),
         {group: '#', count: nonAlpha} as GroupCountDto,
         {group: 'ALL', count: all} as GroupCountDto,
       ]
diff --git a/komga-webui/src/views/UISettings.vue b/komga-webui/src/views/UISettings.vue
index 9a841ecab..c9fd8391a 100644
--- a/komga-webui/src/views/UISettings.vue
+++ b/komga-webui/src/views/UISettings.vue
@@ -2,6 +2,23 @@
   <v-container fluid class="pa-6">
     <v-row>
       <v-col cols="auto">
+        <span class="font-weight-black text-h6">{{ $t('ui_settings.general') }}</span>
+
+        <v-radio-group
+          v-model="form.seriesGroups"
+          @change="$v.form.seriesGroups.$touch()"
+          :label="$t('ui_settings.label_series_groups')"
+          hide-details
+        >
+          <v-radio value="alpha" :label="$t('ui_settings.series_groups.alpha')"/>
+          <v-radio value="japanese" :label="$t('ui_settings.series_groups.japanese')"/>
+        </v-radio-group>
+      </v-col>
+    </v-row>
+    <v-row>
+      <v-col cols="auto">
+        <span class="font-weight-black text-h6">{{ $t('ui_settings.section_oauth2') }}</span>
+
         <v-checkbox
           v-model="form.oauth2HideLogin"
           @change="$v.form.oauth2HideLogin.$touch()"
@@ -48,7 +65,13 @@
 
 <script lang="ts">
 import Vue from 'vue'
-import {CLIENT_SETTING, ClientSettingGlobalUpdateDto} from '@/types/komga-clientsettings'
+import {
+  CLIENT_SETTING,
+  ClientSettingGlobalUpdateDto,
+  ClientSettingsSeriesGroup,
+  SERIES_GROUP_ALPHA,
+  SERIES_GROUP_JAPANESE,
+} from '@/types/komga-clientsettings'
 
 export default Vue.extend({
   name: 'UISettings',
@@ -56,12 +79,14 @@ export default Vue.extend({
     form: {
       oauth2HideLogin: false,
       oauth2AutoLogin: false,
+      seriesGroups: 'alpha',
     },
   }),
   validations: {
     form: {
       oauth2HideLogin: {},
       oauth2AutoLogin: {},
+      seriesGroups: {},
     },
   },
   mounted() {
@@ -80,6 +105,10 @@ export default Vue.extend({
       await this.$store.dispatch('getClientSettingsGlobal')
       this.form.oauth2HideLogin = this.$store.state.komgaSettings.clientSettingsGlobal[CLIENT_SETTING.WEBUI_OAUTH2_HIDE_LOGIN]?.value === 'true'
       this.form.oauth2AutoLogin = this.$store.state.komgaSettings.clientSettingsGlobal[CLIENT_SETTING.WEBUI_OAUTH2_AUTO_LOGIN]?.value === 'true'
+      try {
+        this.form.seriesGroups = (JSON.parse(this.$store.state.komgaSettings.clientSettingsGlobal[CLIENT_SETTING.WEBUI_SERIES_GROUPS]?.value) as ClientSettingsSeriesGroup)?.name
+      } catch (_) {
+      }
       this.$v.form.$reset()
     },
     async saveSettings() {
@@ -96,6 +125,12 @@ export default Vue.extend({
           allowUnauthorized: true,
         }
 
+      if (this.$v.form?.seriesGroups?.$dirty)
+        newSettings[CLIENT_SETTING.WEBUI_SERIES_GROUPS] = {
+          value: JSON.stringify(this.form.seriesGroups === 'alpha' ? SERIES_GROUP_ALPHA : SERIES_GROUP_JAPANESE),
+          allowUnauthorized: false,
+        }
+
       await this.$komgaSettings.updateClientSettingGlobal(newSettings)
 
       await this.refreshSettings()