diff --git a/src/features/core/internal/Voice/index.ts b/src/features/core/internal/Voice/index.ts
index 961677d0..b73bac49 100644
--- a/src/features/core/internal/Voice/index.ts
+++ b/src/features/core/internal/Voice/index.ts
@@ -1 +1,5 @@
 export { Voice } from './internal/Voice.class.js';
+export {
+  getJoinableStateStatus,
+  JOINABLE_STATE_STATUS,
+} from './internal/funcs/getJoinableStateStatus/index.js';
diff --git a/src/features/core/internal/Voice/internal/Voice.class.spec.ts b/src/features/core/internal/Voice/internal/Voice.class.spec.ts
index ad5c603e..c75278e2 100644
--- a/src/features/core/internal/Voice/internal/Voice.class.spec.ts
+++ b/src/features/core/internal/Voice/internal/Voice.class.spec.ts
@@ -14,9 +14,9 @@ import { getInteractionMemberId } from '@/features/others/discord/index.js';
 
 import { Voice } from './Voice.class.js';
 import {
-  JOINABLE_TYPE_MAP,
-  checkJoinable,
-} from './funcs/checkJoinable/index.js';
+  JOINABLE_STATE_STATUS,
+  getJoinableStateStatus,
+} from './funcs/getJoinableStateStatus/index.js';
 
 vi.mock('@/features/others/discord/index.js', async () => {
   const actual = (await vi.importActual(
@@ -39,13 +39,13 @@ vi.mock('@/features/library/index.js', async () => {
   };
 });
 
-vi.mock('./funcs/checkJoinable/index.js', async () => {
+vi.mock('./funcs/getJoinableStateStatus/index.js', async () => {
   const actual = (await vi.importActual(
-    './funcs/checkJoinable/index.js'
+    './funcs/getJoinableStateStatus/index.js'
   )) as object;
   return {
     ...actual,
-    checkJoinable: vi.fn(),
+    getJoinableStateStatus: vi.fn(),
   };
 });
 
@@ -69,11 +69,13 @@ describe('Voice', () => {
       (getInteractionMemberId as Mock).mockResolvedValueOnce({
         voice: { channel: null },
       });
-      (checkJoinable as Mock).mockReturnValueOnce(JOINABLE_TYPE_MAP.NOT_FOUND);
+      (getJoinableStateStatus as Mock).mockReturnValueOnce(
+        JOINABLE_STATE_STATUS.NOT_FOUND
+      );
 
       await voice.join({ interaction: mockedInteraction });
 
-      expect(checkJoinable).toHaveBeenCalledWith({ channel: null });
+      expect(getJoinableStateStatus).toHaveBeenCalledWith({ channel: null });
       expect(mockedInteraction.reply).toHaveBeenCalledWith({
         content: '接続先のVCが見つかりません。',
         ephemeral: false,
@@ -88,13 +90,13 @@ describe('Voice', () => {
       (getInteractionMemberId as Mock).mockResolvedValueOnce({
         voice: { channel: { joinable: true } },
       });
-      (checkJoinable as Mock).mockReturnValueOnce(
-        JOINABLE_TYPE_MAP.NOT_JOINABLE
+      (getJoinableStateStatus as Mock).mockReturnValueOnce(
+        JOINABLE_STATE_STATUS.NOT_JOINABLE
       );
 
       await voice.join({ interaction: mockedInteraction });
 
-      expect(checkJoinable).toHaveBeenCalledWith({
+      expect(getJoinableStateStatus).toHaveBeenCalledWith({
         channel: { joinable: true },
       });
       expect(mockedInteraction.reply).toHaveBeenCalledWith({
@@ -111,13 +113,13 @@ describe('Voice', () => {
       (getInteractionMemberId as Mock).mockResolvedValueOnce({
         voice: { channel: { joinable: true, viewable: false } },
       });
-      (checkJoinable as Mock).mockReturnValueOnce(
-        JOINABLE_TYPE_MAP.NOT_VIEWABLE
+      (getJoinableStateStatus as Mock).mockReturnValueOnce(
+        JOINABLE_STATE_STATUS.NOT_VIEWABLE
       );
 
       await voice.join({ interaction: mockedInteraction });
 
-      expect(checkJoinable).toHaveBeenCalledWith({
+      expect(getJoinableStateStatus).toHaveBeenCalledWith({
         channel: { joinable: true, viewable: false },
       });
       expect(mockedInteraction.reply).toHaveBeenCalledWith({
@@ -132,11 +134,13 @@ describe('Voice', () => {
       } as unknown as Readonly<ChatInputCommandInteraction>;
 
       (getInteractionMemberId as Mock).mockRejectedValueOnce(
-        new LogicException('Channel is null. Please check checkJoinable()')
+        new LogicException(
+          'Channel is null. Please check getJoinableStateStatus()'
+        )
       );
 
       await expect(voice.join({ interaction })).rejects.toThrowError(
-        'Channel is null. Please check checkJoinable()'
+        'Channel is null. Please check getJoinableStateStatus()'
       );
     });
 
@@ -148,11 +152,15 @@ describe('Voice', () => {
       (getInteractionMemberId as Mock).mockResolvedValueOnce({
         voice: { channel: null },
       });
-      (checkJoinable as Mock).mockReturnValueOnce(JOINABLE_TYPE_MAP.JOINABLE);
+      (getJoinableStateStatus as Mock).mockReturnValueOnce(
+        JOINABLE_STATE_STATUS.JOINABLE
+      );
 
       await expect(
         voice.join({ interaction: mockedInteraction })
-      ).rejects.toThrowError('Channel is null. Please check checkJoinable()');
+      ).rejects.toThrowError(
+        'Channel is null. Please check getJoinableStateStatus()'
+      );
     });
 
     it('should join the voice channel and return true', async () => {
@@ -176,11 +184,15 @@ describe('Voice', () => {
 
       (getInteractionMemberId as Mock).mockResolvedValueOnce(mockedGuildMember);
       (joinVoiceChannel as Mock).mockReturnValueOnce('connection');
-      (checkJoinable as Mock).mockReturnValueOnce(JOINABLE_TYPE_MAP.JOINABLE);
+      (getJoinableStateStatus as Mock).mockReturnValueOnce(
+        JOINABLE_STATE_STATUS.JOINABLE
+      );
 
       const result = await voice.join({ interaction: mockedInteraction });
 
-      expect(checkJoinable).toHaveBeenCalledWith(mockedGuildMember.voice);
+      expect(getJoinableStateStatus).toHaveBeenCalledWith(
+        mockedGuildMember.voice
+      );
       expect(joinVoiceChannel).toHaveBeenCalledWith({
         channelId: 'channelId',
         guildId: 'guildId',
@@ -202,7 +214,7 @@ describe('Voice', () => {
         voice: { channel: null },
       });
       // eslint-disable-next-line @typescript-eslint/no-explicit-any
-      (checkJoinable as Mock).mockReturnValueOnce('unknown' as any);
+      (getJoinableStateStatus as Mock).mockReturnValueOnce('unknown' as any);
 
       await expect(voice.join({ interaction })).rejects.toThrowError(
         'Unknown joinable type.'
diff --git a/src/features/core/internal/Voice/internal/Voice.class.ts b/src/features/core/internal/Voice/internal/Voice.class.ts
index 71bea814..ed1014d1 100644
--- a/src/features/core/internal/Voice/internal/Voice.class.ts
+++ b/src/features/core/internal/Voice/internal/Voice.class.ts
@@ -11,9 +11,9 @@ import { LogicException } from '@/features/others/Error/LogicException.js';
 import { getInteractionMemberId } from '@/features/others/discord/index.js';
 
 import {
-  JOINABLE_TYPE_MAP,
-  checkJoinable,
-} from './funcs/checkJoinable/index.js';
+  JOINABLE_STATE_STATUS,
+  getJoinableStateStatus,
+} from './funcs/getJoinableStateStatus/index.js';
 
 export class Voice {
   connection: Array<{
@@ -29,36 +29,36 @@ export class Voice {
     const {
       voice: { channel },
     } = await getInteractionMemberId(interaction);
-    const joinable = checkJoinable({
+    const joinable = getJoinableStateStatus({
       channel,
     });
 
     switch (joinable) {
-      case JOINABLE_TYPE_MAP.NOT_FOUND:
+      case JOINABLE_STATE_STATUS.NOT_FOUND:
         interaction.reply({
           content: '接続先のVCが見つかりません。',
           ephemeral: false,
         });
         return false;
 
-      case JOINABLE_TYPE_MAP.NOT_JOINABLE:
+      case JOINABLE_STATE_STATUS.NOT_JOINABLE:
         interaction.reply({
           content: '接続先のVCに参加できません。権限の見直しをしてください。',
           ephemeral: true,
         });
         return false;
 
-      case JOINABLE_TYPE_MAP.NOT_VIEWABLE:
+      case JOINABLE_STATE_STATUS.NOT_VIEWABLE:
         interaction.reply({
           content: '接続先のVCに参加できません。権限の見直しをしてください。',
           ephemeral: true,
         });
         return false;
 
-      case JOINABLE_TYPE_MAP.JOINABLE:
+      case JOINABLE_STATE_STATUS.JOINABLE:
         if (isNil(channel))
           throw new LogicException(
-            'Channel is null. Please check checkJoinable()'
+            'Channel is null. Please check getJoinableStateStatus()'
           );
         const connection = joinVoiceChannel({
           channelId: channel.id,
diff --git a/src/features/core/internal/Voice/internal/funcs/checkJoinable/index.ts b/src/features/core/internal/Voice/internal/funcs/checkJoinable/index.ts
deleted file mode 100644
index f5342245..00000000
--- a/src/features/core/internal/Voice/internal/funcs/checkJoinable/index.ts
+++ /dev/null
@@ -1,2 +0,0 @@
-export { checkJoinable } from './internal/checkJoinable.func.js';
-export { JOINABLE_TYPE_MAP } from './internal/checkJoinable.constants.js';
diff --git a/src/features/core/internal/Voice/internal/funcs/checkJoinable/internal/checkJoinable.func.ts b/src/features/core/internal/Voice/internal/funcs/checkJoinable/internal/checkJoinable.func.ts
deleted file mode 100644
index 0ddd2b01..00000000
--- a/src/features/core/internal/Voice/internal/funcs/checkJoinable/internal/checkJoinable.func.ts
+++ /dev/null
@@ -1,19 +0,0 @@
-import { isNil, type VoiceBasedChannel } from '@/features/library/index.js';
-
-import { JOINABLE_TYPE_MAP } from './checkJoinable.constants.js';
-
-export const checkJoinable = ({
-  channel,
-}: {
-  channel: VoiceBasedChannel | null;
-}): (typeof JOINABLE_TYPE_MAP)[keyof typeof JOINABLE_TYPE_MAP] => {
-  if (isNil(channel)) {
-    return JOINABLE_TYPE_MAP.NOT_FOUND;
-  } else if (!channel.joinable) {
-    return JOINABLE_TYPE_MAP.NOT_JOINABLE;
-  } else if (!channel.viewable) {
-    return JOINABLE_TYPE_MAP.NOT_VIEWABLE;
-  } else {
-    return JOINABLE_TYPE_MAP.JOINABLE;
-  }
-};
diff --git a/src/features/core/internal/Voice/internal/funcs/getJoinableStateStatus/index.ts b/src/features/core/internal/Voice/internal/funcs/getJoinableStateStatus/index.ts
new file mode 100644
index 00000000..e11e9768
--- /dev/null
+++ b/src/features/core/internal/Voice/internal/funcs/getJoinableStateStatus/index.ts
@@ -0,0 +1,2 @@
+export { getJoinableStateStatus } from './internal/getJoinableStateStatus.func.js';
+export { JOINABLE_STATE_STATUS } from './internal/getJoinableStateStatus.constants.js';
diff --git a/src/features/core/internal/Voice/internal/funcs/checkJoinable/internal/checkJoinable.constants.ts b/src/features/core/internal/Voice/internal/funcs/getJoinableStateStatus/internal/getJoinableStateStatus.constants.ts
similarity index 64%
rename from src/features/core/internal/Voice/internal/funcs/checkJoinable/internal/checkJoinable.constants.ts
rename to src/features/core/internal/Voice/internal/funcs/getJoinableStateStatus/internal/getJoinableStateStatus.constants.ts
index 7ae6264b..902eaeb6 100644
--- a/src/features/core/internal/Voice/internal/funcs/checkJoinable/internal/checkJoinable.constants.ts
+++ b/src/features/core/internal/Voice/internal/funcs/getJoinableStateStatus/internal/getJoinableStateStatus.constants.ts
@@ -1,7 +1,7 @@
-export const JOINABLE_TYPE_MAP = {
+export const JOINABLE_STATE_STATUS = {
   JOINABLE: 'JOINABLE',
   NOT_JOINABLE: 'NOT_JOINABLE',
   NOT_FOUND: 'NOT_FOUND',
   NOT_VIEWABLE: 'NOT_VIEWABLE',
   ALREADY_JOINED: 'ALREADY_JOINED',
-} as const;
+} as const satisfies Record<string, string>;
diff --git a/src/features/core/internal/Voice/internal/funcs/getJoinableStateStatus/internal/getJoinableStateStatus.func.ts b/src/features/core/internal/Voice/internal/funcs/getJoinableStateStatus/internal/getJoinableStateStatus.func.ts
new file mode 100644
index 00000000..77454a38
--- /dev/null
+++ b/src/features/core/internal/Voice/internal/funcs/getJoinableStateStatus/internal/getJoinableStateStatus.func.ts
@@ -0,0 +1,19 @@
+import { isNil, type VoiceBasedChannel } from '@/features/library/index.js';
+
+import { JOINABLE_STATE_STATUS } from './getJoinableStateStatus.constants.js';
+
+export const getJoinableStateStatus = ({
+  channel,
+}: {
+  channel: VoiceBasedChannel | null;
+}): (typeof JOINABLE_STATE_STATUS)[keyof typeof JOINABLE_STATE_STATUS] => {
+  if (isNil(channel)) {
+    return JOINABLE_STATE_STATUS.NOT_FOUND;
+  } else if (!channel.joinable) {
+    return JOINABLE_STATE_STATUS.NOT_JOINABLE;
+  } else if (!channel.viewable) {
+    return JOINABLE_STATE_STATUS.NOT_VIEWABLE;
+  } else {
+    return JOINABLE_STATE_STATUS.JOINABLE;
+  }
+};
diff --git a/src/features/core/internal/Voice/internal/funcs/checkJoinable/internal/checkJoinable.spec.ts b/src/features/core/internal/Voice/internal/funcs/getJoinableStateStatus/internal/getJoinableStateStatus.spec.ts
similarity index 71%
rename from src/features/core/internal/Voice/internal/funcs/checkJoinable/internal/checkJoinable.spec.ts
rename to src/features/core/internal/Voice/internal/funcs/getJoinableStateStatus/internal/getJoinableStateStatus.spec.ts
index 46921183..e477231f 100644
--- a/src/features/core/internal/Voice/internal/funcs/checkJoinable/internal/checkJoinable.spec.ts
+++ b/src/features/core/internal/Voice/internal/funcs/getJoinableStateStatus/internal/getJoinableStateStatus.spec.ts
@@ -1,16 +1,16 @@
 import type { VoiceBasedChannel } from '@/features/library/index.js';
 
-import { checkJoinable } from './checkJoinable.func.js';
+import { getJoinableStateStatus } from './getJoinableStateStatus.func.js';
 
-describe('checkJoinable', () => {
+describe('getJoinableStateStatus', () => {
   it('should return NOT_FOUND if the channel is null', () => {
-    const result = checkJoinable({ channel: null });
+    const result = getJoinableStateStatus({ channel: null });
 
     expect(result).toBe('NOT_FOUND');
   });
 
   it('should return NOT_JOINABLE if the channel is not joinable', () => {
-    const result = checkJoinable({
+    const result = getJoinableStateStatus({
       channel: { joinable: false } as VoiceBasedChannel,
     });
 
@@ -18,7 +18,7 @@ describe('checkJoinable', () => {
   });
 
   it('should return NOT_VIEWABLE if the channel is not viewable', () => {
-    const result = checkJoinable({
+    const result = getJoinableStateStatus({
       channel: { joinable: true, viewable: false } as VoiceBasedChannel,
     });
 
@@ -26,7 +26,7 @@ describe('checkJoinable', () => {
   });
 
   it('should return JOINABLE if the channel is joinable and viewable', () => {
-    const result = checkJoinable({
+    const result = getJoinableStateStatus({
       channel: { joinable: true, viewable: true } as VoiceBasedChannel,
     });