Everyone has the capability to take action, even Masaki, if he wanted something, go do it himself. Blaming Kazuya for another person's life is just unfair.
They probably already killed Ichi lmao, it's such an obvious twist, then they'll killed the girls as well when they done their job. If they don't give us the slightest glimse of Ichi in the next few chapters then it's definitely gonna end like that, and i'm gonna drop this series because that's...