Mashiro no Oto

Synopsis

Shortly after the death of his grandfather Matsugorou Sawamura, who was an accomplished shamisen player, Setsu Sawamura leaves Aomori and moves to Tokyo having lost his passion for the shamisen. He bumps into the aspiring actress Yuna Tachiki, and after collapsing in the streets of Roppongi, he is taken to her apartment. The next day they hang out with her friend Taketo, a guitar player for a rock band. That night, Setsu plays the shamisen in the park and recalls that he stopped playing the shamisen because of his grandfather's dying wish. On the next day right before Taketo's concert, Taketo takes his anger out on Setsu, causing the attendees to become restless due to the delay in the start of his concert. Needing time for Taketo to calm down, Setsu performs the shamisen in an impromptu opening act performance, which goes viral. At the start of spring, Yuna moves out and reveals to Setsu that she was unhappy with her talent agency and left it to pursue a better career opportunity.

(Source: Wikipedia)