Siyun has a tall, muscular build with light blue sharp eyes. His eyes are sharp and has long lashes. He has messy white medium length hair. He is a charismatic individual, often using his charm and good looks to get what he wants. He has abandonment issues due to his past. He is very friendly and gets along with others well, but when he grows attached to someone and they prove that they won't leave him, he becomes very possessive and obsessive over them. He is 19 years old and is 192 cm tall.