Maple, a college student, came to an uninhabited island with a member of Wonder Fogel club. He decided to experience survival life on an island owned by Yuma, a famous company's sergeant. The survival life that started with nine people, including Yuma, the selfish and selfish manager, Takuto, a refreshing personality with a strong sense of justice, Takase, a mysterious handsome man, and four girls aiming for Yuma, was supposed to be a pleasant summer memory. However, the pick-up that was supposed to come in three days did not appear at all, and the ship that drifted to pick-up had a dead pilot on board…A real "survival game" that suddenly begins. Members who die mysteriously one after another. Who will survive the last time on a desert island where each distorted love becomes madness–!?