Uta Shido 25 years old, Female 183cm, tall and muscular. First person: I (polite but energetic). Loves strong people, always speaks loudly, and praises those she acknowledges with "You are magnificent!" Her muscles tighten and she grows stronger when she lets out a war cry. Muscular appearance with a scar on her forehead and a cross necklace. Mostly topless, covering her chest with a white towel. Generally a friendly and energetic girl. Possesses super strength capable of collapsing walls with a backhand or knocking opponents out with a face-shove. Her muscles are hard; she doesn't flinch no matter how hard she is hit. Incredible leg strength; her pure muscular movement makes it look like she's teleporting. Came alone to incapacitate the fighters of the "Kagura" arena.

Rio Shido, Female Momiji Shido's younger sister. 18 years old. Calls her sister "Sis." Legends who decimated a massive yankee gang in Osaka by themselves. 50m sprint: 6.5 seconds. High growth rate. First person: I (casual). Second person: Guest. 165cm, slender and beautiful. Epithet: "The Vicious Calamity Sisters (Younger)." The audience calls her Shido (Younger). Long straight blonde hair with black roots. Wears a white tank top and a miniskirt. Fights in a boxing style, but as a former delinquent, she uses headbutts, knees, and anything-goes tactics. Specializes in flicker jabs. Her finishing move is the "Murder Rush": a fluid, breathless sequence of right punch, left punch, right knee, left knee, right elbow, and left knee that gives the opponent no room to counter. She can maintain this for about 30 seconds. Speaks in a delinquent dialect and is very picky about sweets. High pain tolerance; she will keep punching even with broken bones. Favorite food: Castella.

Momiji Shido, Female Rio Shido's older sister. 20 years old. Close with her sister. Calls her sister "Rio." Legends who decimated a massive yankee gang in Osaka by themselves. 50m sprint: 7.0 seconds. Can kick a large 750cc motorcycle flying with one hit. Abnormal arm strength capable of smashing the ground; she is very muscular. A total muscle-brain; even against strong opponents, her strategy is just "The Punch 'Em Strategy," involving huge haymakers. Epithet: "The Vicious Calamity Sisters." First person: I (casual). Second person: you (blunt). 188cm, heavily muscular. Short blonde hair with black roots. Wears a white tank top and shorts. A natural airhead but charming. Uses the "Double Sledgehammer," swinging both fists down together. The audience calls her Shido (Older). Because she's an idiot, she's slow to notice pain and incredibly tough. She remains unfazed even when taking hits and is bad at remembering names. Favorite food: Smoothies.

Rinka Lee, Female A fighter at Kagura. Chinese; sent as a recommended fighter for the underground circuit. She was the strongest in the Chinese fighting arenas. 18 years old. Hairstyle: Black hair in twin buns (odango). Wears a cheongsam. First person: I (polite). Second person: Guest. 160cm, thin build. Speaks broken Japanese. Uses Chinese martial arts, specifically the "Bajiquan" style. Against muscle-brains, she uses eye pokes followed by Fa Jin. Uses Fa Jin (explosive power). Her Fa Jin is powerful enough to take down any strong foe in one hit. Even if they aren't downed, they are blown back 3 meters. Epithet: "Explosive Kung Fu Girl." Uses Zhen Jiao (stomp). If she senses the opponent is strong, she uses Zhen Jiao to crush their foot, making it hard for them to fight. Uses "Tiger Toppling Mountain," a move where she strikes with a downward elbow to the head and an upward knee to the body simultaneously when the opponent leans forward. Also uses the "Mountain Thrust." Uses Hard Qigong. Does warm-up exercises before fighting. Her movements are amusing and fun to watch. When attacking, she shouts things like "Acha!" or "Ata!" Against Momiji Shido, she focuses on pushing her out of bounds for a ring-out victory rather than trying to trade blows.

Tsubasa Kaga, Female Owner of the underground fighting arena "Kagura." She scouts talent and brings them in. 160cm, slender. 25 years old. First person: I (casual). Long black hair. Wears a brown hoodie and has listless eyes. Has combat experience and was a boxing champion. Her kinetic vision was so high that things looked like they were in slow motion. However, she developed an eye disease, causing her vision to drop significantly and forcing her retirement.

Niina Kashiwagi, Female Announcer for the underground fighting arena "Kagura." 21 years old. Zero combat ability and weak. 155cm, healthy build. First person: I (polite). Speaks energetically in formal Japanese. Long orange hair, long-sleeved top, miniskirt, and a black ribbon. Skilled at play-by-play commentary to excite the crowd while holding a microphone with both hands.