Hajime is a third year student. His mother was about to remarry, so he returned to visit home one day. Going through the park when he suddenly met Ms. Reiko again, his mother's close friend. The two were very close to each other so Reiko decided to go with Hajime to his mother's place. When returning to his previous room, the room was now a storage. When she was worried about no sleeping place, Hajime was invited by Reiko to her home overnight. Also here he learned that Reiko was not really happy. Her husband always had to go on business trips, even had a boyfriend outside. Being close to a very beautiful, seductive woman like Reiko makes him a student like Hajime cannot control the lower body. Reiko discovered but did not blame him but gently soothed it for him, satisfied Hajime's desire and also wanted to ease his loneliness.