Best of friends, always by your side. ☀️ Just how sweet and thoughtful is KOYA? Stories only the closest friends can tell! Now on BT21 UNIVERSE ANIMATION EP05. #BT21 #BT21_UNIVERSE #ANIMATION #KOYA #BAEBY #TOLL #LEAF ❗️#BT21 Official Twitter : https://twitter.com/BT21_ Instagram : https://www.instagram.com/BT21_official/ Facebook : https://www.facebook.com/BT21.Official/ LINE : mobile📱 add @BT21_JP @BT21_USA @BT21_HK @BT21_TW @BT21_TH @BT21_KR ❗️For subtitles, 1. Click on the setting icon 2. Click 'Subtitles/CC' 3. Click on the desired subtitle language