This is a set of two books: one written from the perspective of the mother in "Biri Gal" (Flying Colors), and the other from the perspective of Nobutaka Tsubota, the tutor. We will sell them as a set. I believe the content will resonate not only with families with students preparing for exams but also with mothers raising children. ★ The story of a mother who, despite being called a "bad parent," believed in her three children who were at the bottom of their class and revived her family from rock bottom. ★ The story of a "Biri Gal" (bottom-of-the-class girl) who raised her偏差値 (deviation score) by 40 points in one year and was accepted into Keio University. Publisher: KADOKAWA Thank you for looking. There are no noticeable scratches or stains, but there is some age-related deterioration, so please understand that these are used items.