diff --git a/packages/client/src/components/global/acct.vue b/packages/client/src/components/global/acct.vue
index 018826153c..c3e806b5fb 100644
--- a/packages/client/src/components/global/acct.vue
+++ b/packages/client/src/components/global/acct.vue
@@ -5,28 +5,17 @@
 </span>
 </template>
 
-<script lang="ts">
-import { defineComponent } from 'vue';
+<script lang="ts" setup>
+import * as misskey from 'misskey-js';
 import { toUnicode } from 'punycode/';
-import { host } from '@/config';
+import { host as hostRaw } from '@/config';
 
-export default defineComponent({
-	props: {
-		user: {
-			type: Object,
-			required: true
-		},
-		detail: {
-			type: Boolean,
-			default: false
-		},
-	},
-	data() {
-		return {
-			host: toUnicode(host),
-		};
-	}
-});
+defineProps<{
+	user: misskey.entities.UserDetailed;
+	detail?: boolean;
+}>();
+
+const host = toUnicode(hostRaw);
 </script>
 
 <style lang="scss" scoped>
diff --git a/packages/client/src/components/global/error.vue b/packages/client/src/components/global/error.vue
index d759186167..98b96fb414 100644
--- a/packages/client/src/components/global/error.vue
+++ b/packages/client/src/components/global/error.vue
@@ -8,19 +8,8 @@
 </transition>
 </template>
 
-<script lang="ts">
-import { defineComponent } from 'vue';
+<script lang="ts" setup>
 import MkButton from '@/components/ui/button.vue';
-
-export default defineComponent({
-	components: {
-		MkButton,
-	},
-	data() {
-		return {
-		};
-	},
-});
 </script>
 
 <style lang="scss" scoped>
diff --git a/packages/client/src/components/media-video.vue b/packages/client/src/components/media-video.vue
index a0dc57b657..680eb27e64 100644
--- a/packages/client/src/components/media-video.vue
+++ b/packages/client/src/components/media-video.vue
@@ -22,26 +22,16 @@
 </div>
 </template>
 
-<script lang="ts">
-import { defineComponent } from 'vue';
-import * as os from '@/os';
+<script lang="ts" setup>
+import { ref } from 'vue';
+import * as misskey from 'misskey-js';
+import { defaultStore } from '@/store';
 
-export default defineComponent({
-	props: {
-		video: {
-			type: Object,
-			required: true
-		}
-	},
-	data() {
-		return {
-			hide: true,
-		};
-	},
-	created() {
-		this.hide = (this.$store.state.nsfw === 'force') ? true : this.video.isSensitive && (this.$store.state.nsfw !== 'ignore');
-	},
-});
+const props = defineProps<{
+	video: misskey.entities.DriveFile;
+}>();
+
+const hide = ref((defaultStore.state.nsfw === 'force') ? true : props.video.isSensitive && (defaultStore.state.nsfw !== 'ignore'));
 </script>
 
 <style lang="scss" scoped>
diff --git a/packages/client/src/components/toast.vue b/packages/client/src/components/toast.vue
index 914704c527..869182d8e1 100644
--- a/packages/client/src/components/toast.vue
+++ b/packages/client/src/components/toast.vue
@@ -1,6 +1,6 @@
 <template>
 <div class="mk-toast">
-	<transition name="toast" appear @after-leave="$emit('closed')">
+	<transition name="toast" appear @after-leave="emit('closed')">
 		<div v-if="showing" class="body _acrylic" :style="{ zIndex }">
 			<div class="message">
 				{{ message }}
@@ -10,29 +10,25 @@
 </div>
 </template>
 
-<script lang="ts">
-import { defineComponent } from 'vue';
+<script lang="ts" setup>
+import { onMounted, ref } from 'vue';
 import * as os from '@/os';
 
-export default defineComponent({
-	props: {
-		message: {
-			type: String,
-			required: true,
-		},
-	},
-	emits: ['closed'],
-	data() {
-		return {
-			showing: true,
-			zIndex: os.claimZIndex('high'),
-		};
-	},
-	mounted() {
-		setTimeout(() => {
-			this.showing = false;
-		}, 4000);
-	}
+defineProps<{
+	message: string;
+}>();
+
+const emit = defineEmits<{
+	(e: 'closed'): void;
+}>();
+
+const showing = ref(true);
+const zIndex = os.claimZIndex('high');
+
+onMounted(() => {
+	setTimeout(() => {
+		showing.value = false;
+	}, 4000);
 });
 </script>
 
diff --git a/packages/client/src/components/url-preview.vue b/packages/client/src/components/url-preview.vue
index fe88985a62..dff74800ed 100644
--- a/packages/client/src/components/url-preview.vue
+++ b/packages/client/src/components/url-preview.vue
@@ -76,7 +76,7 @@ export default defineComponent({
 			tweetExpanded: this.detail,
 			embedId: `embed${Math.random().toString().replace(/\D/,'')}`,
 			tweetHeight: 150,
- 			tweetLeft: 0,
+			tweetLeft: 0,
 			playerEnabled: false,
 			self: self,
 			attr: self ? 'to' : 'href',
diff --git a/packages/client/src/components/user-info.vue b/packages/client/src/components/user-info.vue
index 779a71358d..6a25d412fc 100644
--- a/packages/client/src/components/user-info.vue
+++ b/packages/client/src/components/user-info.vue
@@ -27,32 +27,14 @@
 </div>
 </template>
 
-<script lang="ts">
-import { defineComponent } from 'vue';
+<script lang="ts" setup>
+import * as misskey from 'misskey-js';
 import MkFollowButton from './follow-button.vue';
 import { userPage } from '@/filters/user';
 
-export default defineComponent({
-	components: {
-		MkFollowButton
-	},
-
-	props: {
-		user: {
-			type: Object,
-			required: true
-		},
-	},
-
-	data() {
-		return {
-		};
-	},
-
-	methods: {
-		userPage,
-	}
-});
+defineProps<{
+	user: misskey.entities.UserDetailed;
+}>();
 </script>
 
 <style lang="scss" scoped>