Female teacher Nanaho notices her student Shota has a swollen cheek and suspects abuse by his father. A woman of intellect and dignity, she follows her principles as an educator and confronts Shota's father, Kengo, determined to uncover the truth. However, Kengo completely denies the allegations, and Nanaho fiercely challenges his lies. As their confrontation intensifies, the story unfolds into a deeply emotional and gripping narrative.