Kei Wataya is a 28-year-old single mother whose beloved son refuses to attend school. She works at a hospital and often feels the stinging gaze of societal sympathy. With her hands full caring for her child, she believes there's no space for romance—until Dr. Nagisa Kamijō, a 40-year-old doctor known for his aversion to women, appears. Despite their decade-long age gap and mutual friction, an unexpected proposal from him turns their dynamic upside-down. This is a raw, intense, age-gap romance between a jaded single mother and a woman-averse doctor, both navigating emotional scars and longing for warmth.