Third year high school student Haru Hiiragi  is popular with his peers, but isn't interested in his studies or love. Koto Harukawa  is first year high school student who is the target of bullying. One day, Haru sees Koto getting bullied and comes to her defense. Haru and Koto become friends and start their own "Kingyo Club" (Goldfish Club) as their safe haven. Problems from the outside still threatens their relationship.