One day in summer, Ichika Tachibana meets a mysterious girl named Manatsu in a mirror in the classroom.
By chance, a reunion takes place with Maki, a former classmate. However, Maki's former boyfriend appears to cause trouble.
Visiting the beach, Manatsu is introduced to Ichika's friends. Nao, a friend that moved away, also apperars and now has an attitude…
During a camping trip, one of the girls sneaks out to meet a boy and doesn't return. Ichika begins to investigate!
Ichika begins questioning the Djinn's powers and soon realizes it's cost.
After watching a confrontation between Saya and Sei in the rain, Ichika falls ill.
