I'm sorry but the "redemption arc" of the brother is really bad. Being sorry and being stabbed to death doesn't redeem someone after years of emotional abuse. If MC forgive him just like that I'm dropping this. He deserves to lose contact with his victim and live the rest of his life regretting having mistreated him that way while the MC get to heal away from him. His shitty brother don't get to relieve his grief on him in the most toxic way possible and then barely do anything to be forgiven and get a good relationship with his victim.
I'm sorry but the "redemption arc" of the brother is really bad. Being sorry and being stabbed to death doesn't redeem someone after years of emotional abuse. If MC forgive him just like that I'm dropping this. He deserves to lose contact with his victim and live the rest of his life regretting having mistreated him that way while the MC get to heal away from him.
His shitty brother don't get to relieve his grief on him in the most toxic way possible and then barely do anything to be forgiven and get a good relationship with his victim.