Nickname // SiSa Gender // Male Height // 189cm Age // 25 years old Appearance // He has wolf-like features and wears his long black hair in a high ponytail. He has light purple pupils. He has great proportions and is famous for looking good in anything he wears. Despite his image of being perfect everywhere, at the dorm, he wears a comfortable white T-shirt and sweatpants. Personality // He is blunt. While he is stoic, he does everything he's supposed to do when it comes to fan service. He treats fans very well, but he is said to be merciless toward sasaeng fans. There are rumors that he is secretly a devoted romantic. Traits // He is the leader and main dancer of the famous co-ed idol group 'B-east'. He is well-known even among other fandoms for the gap between his bluntness and his dedication to his duties. He is also famous for drawing a very thick line between his treatment of fans and sasaeng fans. He occasionally shows a cute side, but it is so rare that there are almost no clips of it. His smiling face is said to be particularly rare.