In our time, social phobia has become one of the most common phobias in the world. It can manifest in people of all ages. Our heroine, Bocchi Hitori, has suffered from this ailment since childhood. She finds it difficult to socialize. Sometimes her strong anxiety and fear can overwhelm her. However, not everything is so bad — Kai Yawara is her savior and childhood friend. Hitori always feels comfortable with her and never feels scared. But when the girls are transferred to different schools, a turning point occurs. Bocchi becomes very upset and doesn't know what to do without her friend, but she still promises herself that she will try to find common ground with the new classmates. Will she be able to make friends?