Okay so basically we know Leshak as a green flag but apparently he does become a red some even say black flag and then green again. So Leshak finds Radan and locks him up he is angry at Radan and feels betrayed he then goes one night in the cell and beats Radan up than he decided to r@pe him. Radan finds a way out and tries to flee but he trips and injures his ankle Leshak chases him and at some point pulls his clothes to stop Radan and the clothes then rips and Leshak sees how he treated Radan and how brused Radan is he then feels bad and regrets his actions and apologizes to Radan but honestly Radan wasn't even mad at him so he instantly forgave Leshak because in Radans eyes everything was his fault and he felt he deserved getting locked up and beaten so it really doesn't feel like a redemption arc

Okay so apparently the younger brother is actually Mc's little sister from his previous life and the little sister/brother knows Mc is her/his brother and that this new world is causing Mc stress and that Mc isn't happy here but instead of letting Mc know he's not alone and comforting him she/he is only focusing on herself/himself and enjoying this new life to the fullest while he is suffering in silence 😥