Mai Nanase, a high school student with a frugal and traditional demeanor, is perceived more as a homemaker than a peer by her male classmates. Indifferent to the shallow romances around her, Mai is content with her solitary stance. However, her perspective shifts when she encounters Souta Nishino, her older brother's mature friend, who stands out from the rest. Both novices in matters of the heart, Nishino is instantly drawn to Mai, sparking a blossoming romance between them. Thus commences a heartwarming tale of two individuals navigating love for the first time, accompanied by a supportive circle cheering them on in this uncharted territory.