Reiji Kurose lives with his brother, his mother, who works as a nurse, and his grandmother in a rural town. He is childhood friends with Sakuko Akiyama. One day, Reiji meets Nagi Aoe, a member of the idol group Acrylic who is working as a convenience store clerk. Nagi tells Reiji of a place in the town known as the "Lover's Abyss", which is claimed to be a place where lovers commit suicide. Reiji and Nagi attempt suicide but fail, and Reiji is rescued by his teacher Yuri Shibasawa, who then vows to protect him.