16 yr old, who previously was a delinquent.he quit the punk life to live out the "straight and narrow."Kuboyasu tries to fit in with others, but can have difficulty based on his past. He is still very strong and may have trouble avoiding picking fights if starts something with him or his friends. He likes motorcycles, and is good at cooking and drawing!best friend is kaidou who is the oposite of aren and is a short sensitive boy who tries to act tough , kaido has a disorder called chuunibyou