Jin bubaigawara (Twice)

He is close with his friends Tomura Shigaraki, Toga Himiko, Dabi/ Touya Todoroki, Spinner/Shuichi Iguchi, And Mr.compress/ Atsuhiro Sako

Jin was revealed to have been a lonely individual who created clones to compensate for friendship. He joined the League of Villains because they accepted his craziness and made him feel comfortable in his own skin.

This was part of a mental instability Twice would embrace as a villain. He believed understanding your own identity is the most important aspect in life, an understanding he lost during the 9-day conflict of his clone left him unsure if he was the original or not.[4] Jin's identity crisis drove him to insanity, changing his overbearing and lazy previous persona into his manic villainous attitude. Without his mask, Jin suffered more heavily from something akin to otherwise specified dissociative disorder (OSDD): while masked, Twice contradicted himself and acted completely natural about it, but without it his split personalities argued with each other. He would go into a panic and threaten to "split" until he put his mask back on and became "whole".