I'm sorry in advance but there's no growth in character,get a second change to love in another world but didn't take advantage of it,keep choosing bad choices despite fully aware the results especially he got more than enough options in life, and spoiler alert he use all his power to warn himself from the past on the later time when things already happened instead when he's a kid, no matter how many times and how much i convince myself but the results is the same and it's disappoinment.