Music, friends, and love. From the day he met her, the world began to shine—

Okinami Yukitaka was skilled at bass but had never belonged to a specific band. He had no goals, yet nothing else he wanted to do. Amidst his aimless musical pursuits, he stumbled upon a street performance that would completely transform his monotonous daily life.

There stood a girl, Harumi Ena, challenging herself with a solo performance of singing and guitar playing, with her complete amateur skill.

The moment Yukitaka witnessed her street performance, his ordinary world began to sparkle once again.