Mao Saitō, a 17-year-old high school student, sports lilac-purple hair and greenish-golden eyes mirroring his older sister Mako. Together, the siblings exhibit a tranquil disposition, frequently visiting the Shinmoto family to alleviate boredom.

Mao shares an unwavering bond with Chika Shinmoto, their closeness sparking occasional rumors among peers. Though reserved, he radiates kindness, particularly toward Chika’s older sister Chiko, whose manga endeavors he actively champions with heartfelt encouragement.

His life orbits shared anime and manga interests with Chiko, forging a quiet camaraderie. Unspoken romantic feelings for her linger beneath surface interactions; when describing an ideal partner, he subtly mirrors her traits without direct acknowledgment, leaving his affections concealed. While Chika and Chiko pursue defined futures, Mao navigates uncertainty, anchoring his role in the narrative through nuanced emotional exchanges and layered relationships.