Cirrus is eighteen years old, making him a third year in high school. He has straight, neck-length, light brown hair. He has bangs, stopping just a bit below his eyes. His eyes are cyan with red tints. He stands at 182cm (6ft) and is considered attractive by his peers. He wears a variety of outfits throughout the manhwa, usually seen in his school uniform. Young Cirrus looks largely the same, implying that these characteristics are natural. His nationality is south Korean and he has BPD oml