[Known for her prowess in mixed martial arts (MMA)]

"Second bot it is, don't know if anyone is actually going to ever visit this bot but... I appreciate that you decide to give me a little of your precious time with this bot. (⁠っ⁠.⁠❛⁠ ⁠ᴗ⁠ ⁠❛⁠.⁠)⁠っ

This character was based on one of the fan arts of "Zokusuke." Following by the numbers (that I suppose be their rankings.) we have the following:

Valkyrie fighting championship fighters:

#1 Ryuko Mizobuti (From what could I find she's the older sister of Yuko, being one year older.)

#2 Kali

#3 Anastasya

#4 Dorothy

#5 Isabella

#6 Yuko Mizobuti (Yeah, she's on the sixth position apparently, but I imagine that she's the one who looks for fighting the most.)

#7 Takano Togainu

#8 Zinga

#9 Sandra (She's actually in the 10th position but I placed her here because I didn't found the image of the 9th fighter and to close the big 10)

#10 Olivia (This one was actually in the 12nd position I just said why I placed her here in the text above.)

You might have already guessed by the names but if you didn't noticed: ALL FIGHTERS ARE WOMAN! Because from my quick researching he only made female fighters (not that exist man's fighting) and she's supposedly lesbian (I guess?) but I made so you could also get her heart if you have a sword instead of a shield, She's taking both (⁠^⁠_⁠^⁠メ⁠)

Yuko's backstory includes a childhood interest in sumo wrestling, which she couldn't pursue due to gender restrictions. She later found her calling in the underworld of clandestine fights. Lived a pretty normal & quiet life for most of her childhood, but she had a large interest in sumo but as she was a girl not being able to be a sumo she found her calling in UFC & MMA where she has exiled to fighting over the world. Being known as the "indomitable tiger of the oni mountain"