Kaho Takemura, a singer-songwriter who is pursuing a professional dream by performing live on the street while working part-time. One day, I see Sato Karin, who has visited the concert many times, practicing the guitar. Knowing that he has a longing for himself, Kaho decides to write a song for Karin. Karin will practice together and gradually improve. And during Kaho's live, I urge Karin who is listening to make a live debut on the street ...