關於「BT21 Japan」標籤，搜尋引擎有相關的訊息討論：

BT21 Merch Available for Purchase (November) - Weverse Shopshop.weverse.io › zh-tw › shop › artists › noticesBT21 (@BT21_) / Xtwitter.com › bt21_BTS BT21 - Weverse Shopshop.weverse.io › zh-tw › shop › artists › categoriesBT21 Japan Official (@BT21_Japan) / Xtwitter.com › bt21_j