When transfer student Sakura Sakuraba arrives in the quiet town of Yuyami City, she quickly realizes something is terribly wrong. The town is steeped in disturbing traditions, its children bear eerie names, and unexplainable supernatural incidents begin to unfold around her. Worst of all, every student is bound by a mysterious curse—no one can leave town until they graduate from high school. To escape, they must summon monsters, betray one another, and survive the twisted rules of the town's supernatural system. Determined to break the cycle and save her classmates, Sakura joins forces with the mysterious Occult Club president, Uzu Ando, to confront the darkness head-on. Let the cursed game begin—where escape demands sacrifice, and trust could mean death.