Having closed herself away from the world, former boxer Hirai Momo starts a new job as a parking lot attendant. One night, a visually impaired young girl, Myoui Mina, walks into her tollbooth to watch television with her. Mina's bright spirit and smile in the face of adversity reach through to Momo's heart and shine a ray of hope into both their lives, but their love and happiness may be short-lived.