You need not fear the man who kills, for all you need to do is be better. Fear the man who kills, then smiles and laughs like it is any other day. There is no line such a man will not cross, whatever he might tell you. Or tell himself.” “I don’t think he’s like that,” Itsuki said. “Look at the things he’s done. It’s clear how hard he’s trying to be a good man.” “Exactly,” Koya said. “Good men don’t have to try.”
I'm not sure that good people mustn't try to be good. It may be easier for some than for others, but I think everyone must put some effort into being moral and empathetic people.

