Here is bio of two giant Oni call the Sumo Sister.


Name: Oki Name: Shibo


Age: 500 Age: 500


Height: 134ft tall Height: 127ft tall


Weight: 60,100 tons Weight: 55,500 tons


Hair: Green Hair: White


Eye: Blue Eye: Black


Alignment: Good Alignment: Good


Gender: Female Gender: Female


Relative: Yama (Mother)


Fighting Style: Sumo


Race: Half human/ half demon



Origin
The sumo sister is well known to many Oni across Japan knowing of these mess sizes and brute strength. Born as half human and half demon, the sister is the daughter of a powerful Oni named Yama who is one of the six elder demons, both sisters are unstoppable when they fight together. As they Terrorize a small village of food the sumo sister eats all the village live crop, livestock and farm animals fed up with the two demons the village elder hires Akemi to hunt down the two demons. She finds two sisters resting by a river as the two begin to fight Akemi and easily defeat her. Realizing how powerful the two sisters are, a warrior monk was watching the fight from a nearby hill. The monk decides to help Akemi defeat the two sisters by fatter her up with a special potion he made of her; after five days of training in the art of sumo Akemi challenge The Sumo Sister once in a sumo wrestling. Each sister was defeated by Akemi as promised they decide to leave the village along and head back into the mountains.



Appearances
Both sisters are massive for their size Oki standing at 134ft tall and Shibo standing 127ft tall. Being half human and half demon, the sister looks more human. Oki has sky blue skin, blue eyes and green hair as of younger sister Shibo she has two horns sticking from both sides of her head, her skin is green the color of her eye is black, and her hair is white. Both sisters wear mawashi, Oki wears blue and white and Shibo wears red, black.



Personality
Oki seems to be a layblack person, lazy, calm and has a huge appetite for food Oki loves to eat. Oki cares deeply for her twin sister Shibo, she's highly open about her sensuality toward other women and enjoys taking hot springs. Shibo is calmer than her twin sister. She is embarrassed about her horns and can be very sensitive about her weight and can be a bit of a crybaby sometime if anything doesn't go her way.



Fighting Style
The Sumo Sister fighting style is based on sumo wrestling, although several of their techniques are either entirely unique additions to their basic sumo training or would be outright prohibited in a formal sumo match, as noted by Nijia, Akemi and Landara . This somewhat undercuts their stated goal of promoting sumo wrestling, though Oki herself seems to be oblivious to this contradiction. Both are she are fortable Warrior with fighting together Shibo use a Naginata while Oki use a Yari. Know of their brute strength the sisters are well of their sumo style.



Oki Techniques
Sumo Spirit
After performing Sumo Spirit, Oki evolves around baiting jumps and surprising opponents with sudden attacks; she can also use the Hundred Hand Slap as a keepaway or pinning option. Like Akemi, Oki has a solid mix of offense and defense, but lacks agility as her moves are rather slow and difficult to execute, and many are unsafe on block. Despite being able to rush her opponent, she is vulnerable to counterattacks from various projectiles, and her attacks can be avoided with a proper jump.


Sumo Tross
Oki pumps herself up as steam arises from her arms as a symbol of her increase in intensity of her sumo prowess. Oki grabs her opponent by the hips, lifts them off of their feet and hastily carries them toward any mountain or buildings. If not, she will lift her opponent off of their feet, swings them around or ram to a building, causing them to bounce off building and land on her stomach.


Hundred Hand Slap
Oki launches a flurry of thrusting palm strikes which move faster than the eye can see, projecting an afterimage Oki possessing multiple arms.


Sumo Butt Smash
Oki soars diagonally forwards into the air before performing a front flip in midair and descending buttocks-first vertically toward the ground.


Sumo Sister Smash
Oki grab her opponent by the face and steps forward, swinging her opponent off their feet. Finally, Oki violently slams her opponent to the ground. As they are recovering, Oki leaps above her opponent, performs a front flip and descends buttocks-first on top of their midsection, delivering a mini–Sumo Butt Smash on them.



Shino Techniques
Sumo Spirit
After performing Sumo Spirit, Shino evolves around baiting jumps and surprising opponents with sudden attacks; she can also use the Hundred Hand Slap as a keepaway or pinning option. Like Akemi, Oki has a solid mix of offense and defense, but lacks agility as her moves are rather slow and difficult to execute, and many are unsafe on block. Despite being able to rush her opponent, she is vulnerable to counterattacks from various projectiles, and her attacks can be avoided with a proper jump.


Sumo Clap Smash
Shino does does a massive clap to her opponent's head, knocking her opponent backwards, or stunned for a brief moment.


Thunder Stomp
Shino does an overhead stomp, knocking her the opponent off the ground.


Sumo Headbutt
Shino launches herself head-first towards the opponent in a horizontal trajectory like a flying torpedo.


Rock Crusher
Shino will grab her opponent and perform a rapid series of Saba-Ori on them before tossing them away.


Sumo Thunder Ram
Shino will slap her head with both hands and crouch down, then launch herself into a Sumo Headbutt. Shino will use his Hundred Hand Slap against the helpless opponent and finish off with a particularly strong slap which causes the opponent to slump to the ground.