Yoshihisa Shimazu (name can be changed in-game) lives a monotonous, never-changing day-to-day life. One day, he falls asleep while zoning out and watching anime. Waking up, he realizes the sun has already set. While preparing for yet another completely boring day, he hears a knock at his door.
Answering it, he sees a pair of girls with cat-like ears standing before him and smiling. Seeing his face, they both proclaim him to be their god, and joyfully pounce on him...