The Liar and His Lover (2013)

Four high school classmates Aki, Shun, Kaoru and Teppei form the band called Crude Play. However, just before their debut, Aki suddenly quits the band and is replaced by Shinya. The band achieves a new-found popularity on the music scene. Meanwhile Aki, who now composes, continues to provide his music for them but finds himself feeling increasingly tired and somewhat jaded from the music business. One day, on a whim, Aki asks female high school student, Riko, if she believes in love at first sight. Charmed by his humming, she easily falls for him and they start dating, When Aki learns that Riko is a big fan of Crude Play, he keeps his association with the band a secret from her. But how long will he be able to keep his secret?