news news BT21 Universe 2017 returning series 3 seasons Reality A a web series of BTS creating BT21 released in the BT21 YouTube channel. watched want to watch news ✕ loading… cast RM Self Jin Self Suga Self j-hope Self Jimin Self V Self Jung Kook Self seasons Season 1 13 episodes · 2017 Season 2 12 episodes · 2019 Season 3 9 episodes · 2020
