So what I got from the comments is that
Spoiler!
He's a regressor that kills himself whenever something goes wrong because he's a perfectionist.At some point,he loses his regression powers.He suspects of Moondae of having the regression powers instead.He then proceeds to kidnap Moondae no once but TWICE...To try and make him kill himself.He also wants to debut with him IF they went back in time. Is that correct?

