Description: Meet the loving couple Satoshi and Mary, who were supposed to spend their unforgettable summer at the resort. Satoshi's uncle, Kondo, was supposed to go with them, but the uncle couldn't and their plans were suddenly canceled. A few months later, Satoshi receives a creepy email from Uncle Kendo, where he talks about a mysterious competition that a resort is conducting on an abandoned island. Couples who have successfully completed this task are invited to participate in a ritual that should bind two people in love forever. Although it sounded crazy, Satoshi accepted the invitation. So begins this crazy adventure, joined by their friend Hanako, as well as Natsuki and Yoshi! They are told they will be alone on this strange island, but is it true? Try to find out!