When Ayumi discovers that her senior, Yuuki, is transferring to the prestigious Minami High School, she doubts her academic abilities to pass the tough entrance exam. Encouraged by Yuuki, she eventually succeeds and he fulfills his promise to tutor her. A year later, Yuuki is surprised to find Ayumi as a first-year student at his school, only to realize that she has developed a flirtatious side. As they navigate through funny, awkward, and sometimes romantic moments together, their bond deepens, marking the beginning of their shared experiences at Minami High.