Kohaku is a high school girl carrying a secret she guards at all costs: she is a quarter fox spirit, a hybrid of human and supernatural fox. Whenever her emotions run strong, her body betrays her, and she sprouts fox ears and a tail against her will. Terrified that her true nature will be discovered, she has walled herself off from everyone around her. By the time she enters high school, she remains entirely friendless, a self-imposed loner who lives vicariously through the manga she loves, resigned to watching a sparkling school life from the sidelines. Her only way to become fully human is to fall in love and have that love reciprocated, a goal that feels impossibly distant. That carefully maintained solitude is shattered when Akane Inui, the most popular and effortlessly charismatic boy in the school, takes an intense interest in her. He approaches her directly, unfazed by her standoffish demeanor, and seems genuinely determined to befriend her. Kohaku's fragile composure is tested constantly as his presence triggers the very emotional reactions she works so hard to suppress. Every heartbeat, every blushing moment risks exposing her secret, but the more she tries to push him away, the more her own feelings begin to stir. The story follows their budding relationship as a sweet and awkward romantic comedy, centered on Kohaku's struggle to navigate first love, friendship, and the ordinary high school experience she has always longed for, while keeping her supernatural side hidden from the boy who might just be the key to her humanity.