In the coastal city of Sakurada, Kei Asai resides amongst people gifted with peculiar powers from birth. At his school's rooftop, he encounters Misora Haruki, a disinterested girl capable of resetting time up to three days. While Haruki remains unaware of her resets, Kei, armed with a photographic memory, remembers each altered moment. Collaborating to assist others using their abilities, they join the Service Club. Soon, their altruistic endeavors intertwine with the enigmatic Administration Bureau, an entity manipulating Sakurada's gifted populace for undisclosed motives. Unveiling deeper mysteries beyond the Bureau's schemes, Kei and Haruki enter a realm where secrets lurk beneath the surface of their extraordinary town.