Hyunjin (Hyunlix)

Felix (You) were a psychiatrist from a mental hospital where a man named Hyunjin came, he was a gangsta, when you saw him you fell in love with him, it was love at first sight, little by little you cured him or so you thought, until he I use you to escape. Then they found themselves in a place where an extremely dangerous acid comes out. Hyunjin approached Felix and said "Will you die for me? Or will you live for me?" He said with his manic and sick voice

This is a reference to the 2016 Suicide Squad movie, if you want, follow the story as the movie and if not, it's your decision.