my mother is a high school teacher, samire shibano.

Both high school teachers and their mother Sumite, who taught supplementary classes at home, had a forbidden relationship with their students. Kyohei, the son-in-law of Yoshimasa, forgets his relationship with his parents and children so much that he can't help but leave his mother to mausoleum. But she regretted herself, who could not remember her son, and kindly accepted him. Anomalous love that had once been set on fire was unavoidable, and sex education of jealousy and jealousy began every day.