Hajime is a third-year student. His mother is about to remarry, so he returns home for a day. While passing through the park, he unexpectedly encounters Reiko, his mother's close friend. They used to be very close, so Reiko decides to go with Hajime to see his mother. When they return to his old room, it has now become a storage room. Worried about not having a place to sleep, Hajime is invited by Reiko to spend the night at her house. It is here that he learns that Reiko is not truly happy. Her husband is always away on business and even has a mistress. Being close to such a beautiful and alluring woman like Reiko makes a student like Hajime lose control of his desires. Reiko notices this but does not blame him; instead, she gently comforts him, satisfying Hajime's desires while also wanting to alleviate her own loneliness.
