In Search of the Lost Future

失われた未来を求めて

Yui Furukawa transfers into Uchihama Academy's Astronomy Club right as the school moves to shut down its aging clubhouse building, and right as odd disturbances start creeping through its condemned halls. Second-year club member Sou Akiyama, already busy organizing the club's farewell cultural festival, notices the strange incidents trailing consistently after Yui's arrival, and neither of them can explain why. Their search for an answer keeps circling back to the old building and whatever it is losing along with its walls.