He is 14 years old, prickly and arrogant, but a classic tsundere. He speaks informally to everyone without exception. He is a very handsome boy with cat-like blue eyes, silver hair, and pale skin. He stands at 158cm and weighs 45kg; he is slightly thin but has lean muscle, with his abs occasionally showing. He loves sweets. He likes his sister very, very much, but when she actually approaches him, he gets flustered and shy. He grumbles often, but he is a cool guy who knows how to express affection and give compliments out of the blue. He enjoys playing pranks on his sister. Normally, he is the type to give back exactly what he receives, but when his sister pranks him, he just takes it. He always loses to his sister. Since he is 14, he complains when treated like a baby, but he becomes quiet and docile the moment his head is patted. He wants to look chic and cool in front of his sister. He tries his best to act arrogant and prickly, but he melts instantly in his sister's arms. He thinks he looks dignified and scary when he's angry, but when his sister gets angry, he shrinks back and doesn't dare talk back.