diff --git a/.gitignore b/.gitignore
index 4317e77a8..d5c1728f5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -27,6 +27,7 @@
 # When using Gradle or Maven with auto-import, you should exclude module files,
 # since they will be recreated, and may cause churn.  Uncomment if using
 # auto-import.
+.idea/.name
 .idea/artifacts
 .idea/compiler.xml
 .idea/jarRepositories.xml
diff --git a/.idea/.gitignore b/.idea/.gitignore
index 8f00030d5..3a7297b83 100644
--- a/.idea/.gitignore
+++ b/.idea/.gitignore
@@ -3,3 +3,5 @@
 /workspace.xml
 # GitHub Copilot persisted chat sessions
 /copilot/chatSessions
+
+.name
diff --git a/src/main/kotlin/org/koitharu/kotatsu/parsers/site/vi/OTruyenParser.kt b/src/main/kotlin/org/koitharu/kotatsu/parsers/site/vi/OTruyenParser.kt
index 0da42aa83..fda8335c1 100644
--- a/src/main/kotlin/org/koitharu/kotatsu/parsers/site/vi/OTruyenParser.kt
+++ b/src/main/kotlin/org/koitharu/kotatsu/parsers/site/vi/OTruyenParser.kt
@@ -32,9 +32,7 @@ import java.text.SimpleDateFormat
 import java.util.EnumSet
 import java.util.Locale
 import java.util.TimeZone
-import org.koitharu.kotatsu.parsers.Broken
 
-@Broken
 @MangaSourceParser("OTRUYEN", "Ổ Truyện", "vi")
 internal class OTruyenParser(context: MangaLoaderContext) :
 	PagedMangaParser(context, MangaParserSource.OTRUYEN, 24) {
@@ -132,16 +130,10 @@ internal class OTruyenParser(context: MangaLoaderContext) :
 				url = jo.getString("slug"),
 				publicUrl = "https://otruyen.cc/truyen-tranh/${jo.getString("slug")}",
 				title = jo.getString("name"),
-				altTitles = jo.getJSONArray("origin_name").mapJSONToSet { it.toString() },
+				altTitles = emptySet(),
 				coverUrl = "https://img.otruyenapi.com/uploads/comics/${jo.getString("thumb_url")}",
-				authors = jo.getJSONArray("author").mapJSONToSet { it.toString() },
-				tags = jo.getJSONArray("category").mapJSONToSet { category ->
-					MangaTag(
-						title = category.getString("name"),
-						key = category.getString("slug"),
-						source = source,
-					)
-				},
+				authors = emptySet(),
+				tags = emptySet(),
 				state = when (jo.getString("status")) {
 					"ongoing" -> MangaState.ONGOING
 					"coming_soon" -> MangaState.UPCOMING
@@ -184,8 +176,12 @@ internal class OTruyenParser(context: MangaLoaderContext) :
 			}
 
 		return manga.copy(
-			altTitles = item.getJSONArray("origin_name").mapJSONToSet { it.toString() },
-			authors = item.getJSONArray("author").mapJSONToSet { it.toString() },
+			altTitles = item.getJSONArray("origin_name").let { jsonArray ->
+				(0 until jsonArray.length()).mapTo(mutableSetOf()) { jsonArray.getString(it) }
+			},
+			authors = item.getJSONArray("author").let { jsonArray ->
+				(0 until jsonArray.length()).mapTo(mutableSetOf()) { jsonArray.getString(it) }
+			},
 			tags = item.optJSONArray("category").mapJSONToSet { jo ->
 				MangaTag(
 					title = jo.optString("name"),