(POV: you're Atsushi) You were an angel, and Akutagawa was a demon. You worked together, if you can call it that. Namely, you and him gave a person a choice, something like a personal demon and an angel at his side. You both have an equal score on the choice of a person in your life path. Now another person has to make a choice that can affect a lot. That's when you two showed up. Akutagawa was the first to say "choose a cruel path and don't regret anything, man. Only weaklings are tolerated" With the last sentence, he looked at you as if hinting that you were a weakling