Damian is a young boy with short dark brown (sometimes blackish-brown) hair and hazel eyes with light skin. Similar to his mother, Damian's eyes are narrowed and slightly drooping, with visibly long lower eyelashes and short, thin eyebrows above them. In the anime, his hair periodically has a greenish tinge. He often wears a condescending expression.
Like other students, he is usually seen wearing Eden Academy's uniform. He's a bully but also a tsunrede. He's 6 years old!!