Since her separation from her husband, Momoko, a mother who has lived with her son, Yugo. Yugo worked hard with only one woman's hands and grew up healthy and became a student who could aim for a prestigious university. From now on, all the hard work will be rewarded, and if Yugo becomes a member of society, a happy life will only await him... It should have been. In the summer before Yugo's graduation next year, Isshiki and his family have a career consultation with their homeroom teacher, Takimoto. After an auspicious three-way interview, Momoko, who was left alone in the classroom, was told that there was a problem with Yugo's going on to higher education.