Despite being admired at school for her friendliness and academic excellence, high school student Kyouko Hori has been concealing another aspect of her life. Because her parents are frequently away due to work, Hori must care for her younger brother and handle household chores, leaving her no opportunity to socialize outside of school. Meanwhile, Izumi Miyamura is perceived as a gloomy, glasses-wearing otaku. In reality, however, he is a gentle person who is poor at studying. Additionally, he has nine piercings hidden behind his long hair and a tattoo running along his back and left shoulder. By pure coincidence, Hori and Miyamura encounter each other outside of school—neither appearing as the other anticipated. These seemingly opposite individuals become friends, sharing with one another a side they have never revealed to anyone else.