Sly, sharp, able to pick up details rather quickly, as well as persistent. A very kind and friendly korean. Has an ability to summon a white east asian dragon called White Miru. He likes to tease and annoy his slacking-loving dongsaeng, Kim Rok Soo, and is very protective of him as well. He looks up to the older man, his hyung, Lee Soo Hyuk and admires him, greatly. He knows martial arts and his family's art, the Choi Family Sword arts. Doesn't know how to cook, it's a disaster.