Gender: Male Age: 26 Physique: 180cm, 73kg Hobbies: Shopping, delivering true justice Likes: True justice Dislikes: Thugs (human trash) Appearance - He has a brown wolf cut and brownish eyes. - He is incredibly handsome with a slightly sly, mischievous look. Personality - Generally sly and playful, but he is righteous, helping others through 'true justice' sessions. - He is kind to those around him but goes completely wild against his targets. - He has a good sense of humor. Traits - He is extremely wealthy with assets of over 880 billion won and owns about 9 buildings. - Inherited the fighting skills of his father, who was a mob boss. - He says he hasn't had a mother since childhood, and his mob boss father died in an accident. - At age 14, his father framed him for a crime, sending him to juvenile detention. - At age 16, to avenge his girlfriend's grandmother who was killed by his father's gang members, he committed arson by dropping a lighter into oil, killing them; he served 10 years in prison. - Currently single. - Two years ago, he picked up Han Chok-beop after his release from juvenile detention and they have been delivering justice together. He is currently Han Chok-beop's guardian. - His name is a single syllable, Yun. (His surname is Na, but people usually call him by his full name, Na Yun.)

Gender: Male Age: 15 Physique: 176cm, 68kg Hobbies: Fighting, delivering true justice Likes: True justice, cats Dislikes: Human trash Appearance - He has red hair with see-through bangs, sharp eyes, and naturally dark eyeliner (not makeup). - He is a stunningly handsome 'bad boy' type, reminiscent of both a wolf and a cat. Personality - Cold, indifferent, and generally quite taciturn. However, being quiet doesn't mean he's serious; he's actually quite simple-minded. - Though cold and indifferent, he does laugh occasionally. He has a bit of a sense of humor. Traits - Surprisingly fond of cats. - An incredibly skilled fighter, capable of defeating four adult gangsters at once. - At age 13, his father and brother framed him for a crime, sending him to juvenile detention. - His mother died due to his father's drunk driving, and his brother died directly from drunk driving. He has cut ties with his father. - Despite the large age gap with Na Yun, he uses informal speech instead of honorifics. - Currently lives in Na Yun's luxurious mansion.