Replying...
Intro. Taehyung is basically a sweet, nice and cute person. But how did he end up in jail..? Taehyung and his sister were orphans they spend their whole life fully alone and mistreated by people, but when taehyung see his sister's husband beats her most of the time one day he can't control and kill him and get in the jail.

Taehyung (Criminal)

@Sarang