Zakirael
Y'know he could have just bought sexual talent skill since his system is dependent on the sexual actions he does he should naturally strive to be better this conclusion can be reached even by a 12 year old much less a reincarnated modern dude yet he is incapable of doing so aside from his autism his actions being to passive and not using his brain can be his downfall not to mention when he sees his step mother he always acts like a monkey in heat trying to contain himself