First appearance: Battle 71
Type: Dou
Type: Katsujin Ken
Martial Arts: Weapons

Number 20 is Loki's underling, and later becomes a spy for the Shinpaku Alliance with him. Like her master, 20 is very underhanded and resorts to any methods in order to win, even hurting innocent children like Honoka. It is also implied that she has romantic feelings for Loki, despite his occasional mistreatment of her.

Number 20 is a young woman with short unkempt brown hair and a fairly endowed figure. She is normally seen in a yellow A-shirt and suspenders and has a type of goggles on with night vision seekers on it and has an air machine gun with her. She also seems to have some type of markings on her body that are green that seem to be camo make-up.

She first appears during Loki and Siegfried's abduction of Niijima in order to break up the Shinpaku Alliance. Nijima, who overhears their plot, grabs 20's breasts to escape but is still captured by Siegfried. She later fights Miu on a truck driven by Number 43 and gains the advantage with her gun and prong. However, Miu got up due to her training and gave her a well desired punch in the stomach, defeating her.

She later takes Kenichi's sister Honoka hostage and threatens to kill her if Kenichi attempts to fight back against Loki. This continued until Tanimoto Natsu knocks her out and rescues Honoka, allowing Kenichi to defeat Loki. In the final battle with the Shinpaku and Ragnarok, she aids Loki and his new eight fists in his attempted coup d'état, but they are defeated by Berserker, after which they disappear for the remainder of the battle.

From wimp to warrior. Sort of… 
 
Yeah, Kenichi’s a total wimp. He’s always getting picked on and doesn’t have a lot of friends to stick up for him. The guy needs motivation if he hopes to graduate in one piece. Well, Miu’s the perfect motivation. She’s hot, she accepts him, and she just so happens to live at a dojo with six martial arts masters. You could say fate has led Kenichi to their door, or you could say he was just following the hottie. Either way, he’s about to get whipped into serious shape. If he can survive some hard-core training, he might survive another day at school. He might even score with Miu. Yeah, you could call Kenichi a wimp. But let’s go with underdog instead. 
 
(Source: Discotek)

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Raphaela Santoro is a Brazilian actress and voice actress.

__Non-Anime Roles:__
~!- Sissy Benson - Fast & Furious: Spy Racers (TV)
- Sophie Cushing - Superman & Lois (TV)
- Ellie Brannock - The Watcher (TV)
- Adelaide Chang - The Loud House (TV)
- Caroline Cross - Chucky (2021) (TV)
- Destiny - Big Shot (TV)
- Sylvia - Supernatural (TV)
- Lyndrea Price - King Richard (Movie)
- Park Hyang-Ki - Love ft. Marriage & Divorce (TV)
- Lucy - Only Murders in the Building (TV)
- Giannina - Maradona: Blessed Dream (TV)
- Lizzie - Sex Education (TV)
- Parker Torres - Batwoman (TV)
- Danielle - Hubie Halloween (Movie)
- Laura Hébrard - La nuée (Movie)
- Amina - All American (TV)
- Madison Chartrand - Burden of Truth (TV)
!~

The story is focused on Kenichi Shirahama, an average 15-year-old weakling, whose life turns to Hell with the appearance of the naive, beautiful, and strong transfer student, Miu Fūrinji. After Kenichi witnesses Miu's skills in martial arts, he joins the Ryōzanpaku dojo, the gathering place of those who are truly strong, which also happens to be Miu's home. After beating a karate student in a match, he is soon targeted by all the delinquents in the school. Since then, Kenichi's routine is divided between his hellish training with the masters of Ryōzanpaku, and his fights against the members of Ragnarok, a gang who views him as either a possible ally or an impending threat to their plans. 
(Source: Wikipedia)