Ren Nanahoshi may be a lonely university student who isn’t good at communicating with others. He remembers the joys of watching a live band perform when he was young, and spent most of his days checking out his own identity. One day, while singing karaoke alone, two boys named Yuuto and Wataru discover Ren’s singing ability. the 2 agree: “This is fate. Let’s start a band!” Ren promptly runs away, but fate indeed steps in, and their journey begins.