BT21 ORIGINAL STORY EP.10 – TATA Experiencing Earthlings Culture Episode 10 of BT21 Original Story was released on YouTube. Release Date: July 30, 2021 KST Source Related Pages BT21 ORIGINAL STORY EP.11 – BT21’s PRANK... BT21 ORIGINAL STORY EP.09 – YouTube Challenge:... BT21 UNIVERSE 3 COMPILATION