This Time Around (смешанная)

Years after Nie Mingjue’s death, Nie Huaisang goes back in time to prevent it from happening by killing Meng Yao before he can become a monster. Nothing goes as planned.
Nie Huaisang gave a heavy sigh. None of it excused the things Jin Guangyao had done. None of it would make him forgive his brother’s death.
But did it have to be that way? This was a child. A child who was crying in the night, on the cold stone he had as a bed, because someone he looked up to had hurt him. How could he blame him for what he had become? How could he say that this boy deserved death? Who was he to make that judgment?
Could he save both his brothers?
Or: Nie Huaisang accidentally adopts a bunch of chaos gremlins.