Strategy for Dealing with Problematic Girls

Jhin was dead. Now, he works for a god. His task: to fix “Problem Girls” in a world where anime universes collide. Mission 1: Prevent the fall of Tenma Gabriel White. Status: Critical failure. He accidentally introduced her to online games. Mission 2: Save the future band of Hitori “Bocchi” Gotoh. Status: Complicated. She saved him from delinquents and now thinks he’s her boyfriend. With a cheat-level learning talent and a system that grants him powers after each mission, Jhin must fix the chaos this god created. But how can he save his favorite heroines when he’s the source of half their problems himself? — Description from novelcodex.org