Introverted Bocchi takes up the guitar in hopes of meeting friends, but her social anxiety is not so easily conquered...

Bocchi decides to try to pursue a new vocalist for the band: a classmate named Kita.

When Bocchi struggles with the decision of whether or not to perform at her school's culture festival, Kikuri arrives to offer inspiration.

The culture festival's rolled around, and the Kessoku Band girls want to enjoy it with Bocchi... if they can even find her first!

Kessoku Band's performance at the culture festival is on. Can the band make it through without disaster?