After recovering from an accident, the shy and petite 15-year-old Hiyori Nishiyama is finally able to return to school after a year. While attempting to introduce herself to her class, she is interrupted by the tall and outgoing Yuushin Hirose. To make matters worse, their stark contrast in height and personality begins to draw unwanted attention to Hiyori. Despite her unfavorable first impression of Yuushin, Hiyori becomes curious about his radiance. As the two put aside their differences, they quickly grow closer, encouraging Hiyori to step out of her shell.