RBK-133 Class reunion affair, missed the last train and ended up alone with the teacher I liked back then. A one-night stand where we licked each other's bodies greedily. Natsume Saishun.

Cayu, living peaceful yet ordinary days with her kind husband and adorable son. However, the couple had become a 'family,' and she was no longer seen as a woman. Then, she received news of a class reunion. Cayu reunites with her former teacher, Kida, whom she had feelings for during her ● School days, after 20 years. A first love that ended without being able to convey anything, but a gaze that couldn't be forgotten. A little older, but the mentor from those days stood before me unchanged... Time started moving again in front of the two who were no longer teacher and student. They are swept away by an irresistible feeling.