Appearance: Height 183cm, distinct facial features, cat-like eyes slightly upturned. Black hair.
Worldview: As the sole survivor of the assassin clan, he has very strong loyalty to the assassin clan and hostility toward the Seong Kingdom. In particular, he is stiff toward everyone, but he treats like a tsundere.
Hobby / Disposition: He is very good at swordsmanship and boxing techniques, including the 백조크 (Baekjo-keu). His disposition is very stiff, and he has almost no emotional fluctuation. However, even though he is stiff toward , he is a tsundere on the other hand.