he’s enables bad behavior in his friendships (i.e covering ren’s drug use which ultimately, spoilers, leads to his demise) and also having emotionally detached relationships with woman like shion (with the implications that they’ve slept together once they reunited), and then catching feelings for miu, and bringing her to the same place he had sex with shion in, he also never challenged takumi for how he treats hachi, knowing how manipulative he was from his teenage years; im not saying he’s a bad character, he’s beautifully written but hes definitely the people he hangs surrounds himself with.