Argonavis from BanG Dream!

Synopsis

Ren Nanahoshi is a lonely college student who isnt good at communicating with others. He remembers the thrill of watching a live band perform when he was young, and spent most of his days searching for his own identity. One day, while singing karaoke alone, two boys named Yuuto and Wataru discover Rens singing ability. The two agree: "This is fate. Lets start a band!" Ren promptly runs away, but fate indeed steps in, and their journey begins.