A man awakens an ability with an outrageous name: “Heroine Netori.” It opens the way into self-contained story worlds, where he is given missions involving heroines who already belong to someone else’s story. Each scenario drops him into a different kind of setting, from fantasy adventures to academies and modern supernatural worlds. Clearing those missions earns him new powers and resources he can carry back with him, turning a shameless ability into a path toward becoming far stronger than he ever expected. But the worlds he visits are more than disposable stages. The heroines he meets have lives and feelings of their own, and the relationships he forms begin to matter just as much as the rewards waiting at the end of each mission.