Maki, a tall and beautiful teacher, is the object of admiration for her male students, but in three months she is due to marry fellow teacher Tabuchi. One student, Mita, has special feelings for Maki. One day after school, a comment made during class leads to trouble between students. When Mita, who is injured, goes to the nurse's office, he witnesses Maki and Tabuchi passionately making love. The next day, Mita calls Maki and begs her to do the same to him in exchange for not telling anyone. Though hesitant, Maki accepts his feelings. However, another student witnesses this. Tabuchi saves Maki from being attacked by the two students, but...