BT21 Universe are behind the scenes episodes of the making process of BT21 characters, their personallity, backgroud story, etc.
BT21 Universe 3
Aired on: Apr 16, 2020
Total Episodes: 9
Duration: 3 min.
Year: 2020
Country: South Korea
Native Title: BT21 유니버스 3
Content Rating: G – All Ages
Alternative Titles: BT21 Universe Season 3
Genre: Comedy, Documentary, Friendship