In Search of the Lost Future - S01

Kaori Sasaki, a member of Uchihama Academy's Astronomy Club, confesses her feelings to Sou Akiyama-only to die in a car accident later that night. Her friends grieve at the hospital, but the next day, Kaori returns to school as if nothing happened, and no one seems to notice anything strange. The day passes normally, and the club makes plans for the upcoming cultural festival. Without warning, a bizarre earthquake rattles the room. The group scatters to investigate, leaving Nagisa Hanamiya alone. As she lingers, the ancient-looking cube she’d been fiddling with begins glowing an eerie blue. At the same time, Sou discovers an unconscious, naked girl lying in a puddle of water. "Ushinawareta Mirai wo Motomete" follows the Astronomy Club as they navigate increasingly surreal events-encountering ghosts, settling conflicts between student clubs, and uncovering the truth behind the mysterious new transfer student who suddenly appears among them.