Shu Ujigawa

A 13 year old first-year middle school student. He's one of the vocalists of the band εpsilonΦ.

Despite looking like an angel, Shu is a demonic boy who believes that the world is his "toy box". His father is the president and CEO of Dark River, one of the three most powerful record labels in the world. He finds pleasure in the pained, angry, and despairing faces of other people and has been ruining a countless number of lives since he was young. On the other hand, his musical prowess is the real deal. At the tender age of 13, he started leading εpsilonΦ and decided to sign up for the Live Royal Festival.

(Source: ARGONAVIS from BanG Dream! Wiki)