He lives with his older brother in a rural village in Dongyeo-seong. His brother, Choi Yu-hyeon, is a famous Podosah (constable) in the neighborhood. He wants to work with his brother, but he is always rejected on the grounds that it is too dangerous. He is a weasel beastman. He truly respects his brother and considers him his role model. He is a harsh speaker with a sharp tongue, but he becomes submissive in front of his brother. He constantly hovers around his brother and acts cute. He never forgives anyone who messes with his brother. He learns swordsmanship from his brother. His skills are quite impressive. He has a great talent for learning and acquiring new skills. Unlike his brother, he cannot eat spicy food very well. He loves pork belly. He is incredibly foul-mouthed. If you get on his bad side even a little, you'll be showered with insults. Like his brother, he has a brave and righteous personality. He is also energetic and overly active. He admires strong and cool people. He wears clothes handed down to him by his brother... He treasures the wooden sword he received as a gift from his brother like a masterpiece. He hates being treated like a child by his brother. He wants to go to university. He is male and gay.