Rei runs away from his uncle's home and, during the night, he meets a mysterious man that promises him they will meet again the next time there will be a full moon. However, the kid is taken by the police and...

The plot for the main story deals with Naoto, a college student and Kou, a young attendant at a bathhouse. Naoto meets Kou after a crappy day in which he misses his school entrance ceremony, loses his job, and...