Rabi

Rabi is I♥B's drummer from Russia. In the past, he played heavy metal music. He's easygoing and dependable, and is so responsible that it's hard to believe he's only 17 like the rest of the group.

He acts like an older brother to the rest of I♥B, stepping in to help Chaoyang when he's nervous and breaking up Leon and Lucas's fights. He keeps everyone together, and thinks about what’s best for the group more than anyone. He hides it from the others, but he used to be a delinquent.

(Source: Etoile Stage Wiki)