I met Sayo again after a long time

Sayo has left her teacher and becomes a married woman, and Yoshino has graduated from school and works as a hard-working trading company employee. The two once had a teacher-student relationship, but they made one-time mistakes. Then, 12 years later...they meet again on the night of their reunion. Sayo can't hide her upset, and begins to become aware of Yoshino, who has had no choice but to revive her past memories and have grown strong, as a member of the opposite sex. Since then, he has once again built a distorted relationship as a married woman and a young man, not a teacher and a student...