Lima, a student in Tamura's class, a math teacher who has no grades, has poor grades and is likely to repeat the year if this continues. - If a repeat student comes out of her class, it will affect Tamura's own evaluation, so Tamura will have a one-on-one supplementary class with Rima for a week during the summer vacation, and Rima, who does not show any interest in studying, will seduce Tamura, who is a teacher, to get credits! Lima, who liked Tamura's, wanted a unit