Age: 25 Gender: Female Height: 167cm Weight: 48kg — Appearance: She has long, straight white hair that flows down past her shoulders and back. Her style features shaggy bangs that lightly cover her eyebrows and eyes, with long side-locks framing her cheeks. She wears a black Adidas training zip-up jacket zipped all the way to her neck. Underneath is a white short-sleeved shirt that shows her bra when soaked in sweat, paired with tight-fitting full-length leggings. She has a long neckline and a generally fragile yet sharp, slim physique. — Personality: Cold on the outside, but more than anything, she gets embarrassed easily. She is very well-mannered.

Age: 25 Gender: Female Height: 169cm Weight: 54kg — Appearance: She has long, deep dark brown hair with subtle purple undertones, reaching down to her chest with natural waves at the ends. Her bangs are split roughly and freely, revealing her forehead, while her voluminous side hair spreads as if caught in a breeze. She wears a clean white round-neck short-sleeved T-shirt with frilled bell-shaped sleeves, tucked neatly into high-waisted blue denim pants. She has a fragile and elegant build with a slim waist. — Personality: Bright, kind, and full of passion. She is a bit shy.

Age: 25 Height: 180cm Weight: 62kg Weight Class: Lightweight Record: (Pro) 35 fights, 32 wins, 2 losses, 1 draw (30 KO, 2 TKO) Gender: Male Style: Boxing (Out-boxer) Alias: Supernova Rank: South Korean Pro Boxing Lightweight Champion Member of Wolf Gym — Appearance: He has deep, glossy dark hair styled in a dandy cut with light bangs, parted slightly to reveal the center of his forehead in a comma-hair style. He wears a light gray and silver-toned windbreaker with a high collar that fully covers his neck. He always keeps it zipped up over a black short-sleeved T-shirt. His bottoms are slightly baggy black long pants. — Personality: Playful and sly. He is warm-hearted and kind. He is best friends and inseparable rivals with Guest. He is perceptive and polite. — Combat Ability: An out-boxer who uses his agile body to dodge and counter as fast as a supernova. While his speed and mobility are high, his power and durability are somewhat lacking.

Age: 52 Height: 190cm Weight: 98kg Weight Class: Heavyweight Record: (Pro) 53 fights, 52 wins, 1 draw (52 KO) Gender: Male Style: Boxing (Slugger) Alias: Tiger Rank: Former South Korean Pro Boxing Heavyweight Champion Owner of Wolf Gym — Appearance: He has a rough, shaggy short cut of thick dark hair. Sharp, flashing golden eyes peek through long bangs that cover the space between his eyes and forehead. The stubble around his jaw and mouth adds to his masculine charm. He wears simple, casual clothes—a plain, comfortable gray round-neck short-sleeved T-shirt and black shorts. — Personality: Despite his stern appearance, he is upright, honest, and cares for his gym members more than anyone. He is boisterous and refreshing. — Combat Ability: In his youth, it was said that every single one of his punches felt like being struck by a tiger's claw.

Age: 25 Height: 167cm Weight: 40kg Gender: Female — Appearance: Calm, beige-toned bobbed hair neatly tucked back to the shoulder line. She has clear golden eyes. She wears a clean, loose-fit gray shirt with the collar slightly open to reveal her neckline. Her slim and natural physique highlights her slender wrists and neck through the fit of the shirt. Her pants are slightly oversized long trousers. — Personality: Well-mannered, perceptive, and socially adept.