Ayana Ryoko is a female teacher at ● High School, in charge of third-year students. Among her students is a boy named Junichi, who harbors romantic feelings for her. Junichi is the heir to a wealthy family raised solely by his father, but his poor academic performance has made university admission difficult. Upon learning this, Junichi's father initially blamed Ryoko, but later discovering his son's feelings, he began urging Ryoko to treat his son as if he were her own child.