The resident of Draconic Deus believed Yamato was Hanyo Oni but in truth she was a Mystic Oni from Tensura and they scale above normal dimensionality due to being a Spiritual Lifeform. They possess an immense amount of power comparable to that of a demon lord and nigh-unlimited life spans as a result.
Oni are said to wield supernatural powers that allow them control over nature and natural disasters. Their supernatural power, along with their immense reserves of magicules and spiritual nature, has resulted in most of the oni over the years being worshiped as local gods.
Spiritual life-forms also known as energy creatures are beings of pure willpower and energy. Spiritual life-forms are an almost godlike existence that need only their mind to remain alive. They're a step above demi-spiritual life-forms and have transcended the body entirely, making them effectively immortal.
They are capable of thinking and existing with just their soul and astral body alone, allowing them to resurrect even from the destruction of their spiritual body over a long enough period of time.
There are only two reliable methods of killing spiritual life-forms, those being the destruction of their soul, core break and total deprivation of energy, energy loss . Any other form of defeat is only temporary and they'll be reborn again somewhere else in the world eventually, though with potential loss of memory or personality.
Due to being existences of pure will, they innately possess an extremely powerful will above that of any lesser being. It is this willpower that makes them extremely resistant to mind control abilities such as Spiritual Domination, though it isn't impossible for them to be affected under the right conditions.
Though, Yamato doesn't have Ultimate skills doesn't mean it would be a problem for her. She simply had the physiology of such a being.
As psychic beings, the beliefs that spiritual life-forms hold about themselves are extremely important. Not only is their appearance dictated by their own self image, the abilities they develop can also be said to reflections of their desires.
Just the act of perceiving an opponent as being superior to themself could be enough to make them lose a fight and truly admitting utter defeat usually results in the loser becoming loyal to the victor or even potentially being fatal. Even unstable emotions due to taunts or similar can change the tide of battle.
There is also the fact that Yamato is also an Elemental soul, a type of spiritual life-forms considered the superior versions of elementals, with 8 different types existing.
These creatures have the ability to rewrite the laws of the world through soul magic, it is ingrained into the souls of elemental souls.
The type of laws that they can manipulate and the degree to which they can manipulate varies from person to person, being classified by element and grade respectively.
Depending on factors such as elemental weaknesses and the willpower of the user, it is possible for their elemental abilities to overcome ultimate skill users. Yamato's alignment was Ice and blizzard.
The chances of Yamato being defeated was slim but possible considering it is all about willpower and Sirzechs can also somewhat become a Spiritual Lifeform when he uses Aura of Destruction.
Though, Yamato was going off on a theory. A battle theory.
"Wait! I want to form a contract with you as well!" The dragon exclaimed seeing how Yamato simply released her pressure and won against the black spider of calamity!
"If I accept, will you provide me with your blood and energy." Contract does that. It's a control and Yamato can give her familiars to her.
"Of course!" Yamato widely grinned and in the end the two accepted the terms, forming a contract with her.
First was the dragon who turned into an extremely beautiful young woman with wavy waist-length turquoise-blue hair (which have a mist like look to them) that is tied up in a ponytail with a chest-length hair strand hanging on the left side while she has short bangs hanging on either side, red reptilian eyes and a curvaceous figure.
The other was a young woman that had black hair with a red headband knot in bloom, black lace gloves and wore a luxurious black and red kimono in the style yukata, further the handle had white frills.
"Hahaha this is nice! I looked at your memory and I like what I see!" The dragon said.
"Ohhh~♥️ I could feel the energy flowing into me! It's really delicious~!" The spider said.
Yamato awkwardly smiles thinking that the dragon saw the things that she didn't need to block.
"So you're one of those huh? Well that makes it easy! You are now my mate!" The dragon boldly declared.
"Wait but she's a woman though?" The spider confused and the dragon whispered into her, shocking the spider woman and blushing before licking her lips.
"Then I also want to be your mate!" It said a while Yamato saw the notification.
[ Unnamed's affection has reached max! ]
[ Status: Eternal Mate (I like her! I know I can get along with her nicely! I wish to see more of Japan) ]
[ Unnamed's affection has reached max! ]
[ Status: Eternal Mate (She helped me free from my unsatiated hunger. I want to serve her with my life.) ]
Yamato was half expecting this to turn out differently but decided to accept them. Who would have thought she'll obtain not one but two familiars.
"Wait, you have to talk with my first mate first before that." Yamato said and both nodded.
"By the way, Master, can you give us a name?" The dragon said and the spider joined in.
"Yes, I would like to have a new name given by you, Master." Their names were already given in Yamato's mind and said.
"You two will be Tomoe and Mio. Serve me well from now on as I do the same to you as your master." Yamato declared to them spreading her conqueror Haki showing off her authority with Tomoe became excited sharing a similar personality as Yamato while Mio was similar to Akeno.
'They really reflect me and my Akeno…' Yamato thought with the two bowing showing their devotion to her. Then Tomoe went ahead and marked Yamato with Mate Mark followed by Mio. They seem different on how they think and choose their partner compared to other races.
Eventually they continued their journey through the forest until they arrived in a particular cave where Yamato sensed something powerful.
'Compared to Tomoe and Mio, this is the first time I feel like fighting a bit more seriously.'
Yamato sharply gazed upon the dark cave and saw clawed arms escaping the shadow and blowing voices reverberating through the air as if demanding for attention.
Its enormous body cast a shadow unto Yamato with scale pale blue glistening in the unique light and gem-like eyes staring at Yamato filled with curiosity.
"What is your name, intruder?" The booming feminine sultry voice seemed to shoke the air around her.
"Yamato Kozuki. A Hanyo Oni." She answered immediately, not showing any fear nor flinching when the dragon released their killing intent that made Mio and Tomoe step back.
The dragon was Tiamat, one of the Dragon Kings and titled as Chaos Karma Dragon. She was acknowledged as second to none among dragons including Ddraig and Albion who are heavenly dragons.
"You manage to tame and form a contract with these two. Tell me why you are here? Don't tell me you intend to make me your familiar?" If voice showed a hint of interest, she would seem to want to see the power that Yamato wields to boldly come to her territory knowing full well what she's capable of.
"Yes, that's exactly what I'm here for and also turn you into one of my mates." Yamato declared with Mio and Tomoe looked at her as if she lost her mind, especially since the two couldn't fight Tiamat even if they wanted to.
"My mate? You're a woman and even if you weren't, do you assume I'll simply accept it?" Tiamat sensed that Yamato did not show any fear, if anything it was excitement and eagerness to fight like how dragons are. She was showing her presence and didn't back down against anyone else.
"That's easy, I have a way to breed with you if you wish."
Yamato said, receiving a glint from Tiamat. She has been searching for a mate for quite some time to bear their children but as a dragon they desire a strong mate. Though, classification of Strong can be vague but most dragons pursue combat prowess with rare occasion strong willed.
"Even if that is the case, you think I'll submit to you?" Tiamat released even more pressure while Yamato, widely grinning, immediately sent themselves inside Asora, surprising Tiamat then feeling being countered by the pressure when Yamato unleashed Haki.
"I know. I have to beat you in order to do that!" Yamato changed her clothes into her wano clothes and started to transform into her hybrid form. She started to grow bigger with hair seemingly turning into a mane while her legs turn like that of a dog's hind legs and her nails turn sharper. There was a cloud that acted like Hagoromo and a long bushy tail behind her.
Yamato didn't underestimate Tiamat and took it seriously as the Chaos Karma Dragon saw this and sense as someone powerful. She became even more imposing than before.
'Amazing! Even that Lucifer boy would have to take this fight seriously.' Tiamat thought curling her dragon lips into a smile while Tomoe and Mio stepped back when the dragon king charged up a powerful fireball towards Yamato who also charged up.
[ Namuji Hyoga! ]
The blast collided with tremendous force, causing a massive explosion that compressed the air before erupting into a towering mushroom cloud, disintegrating the ground beneath it. Amidst the chaos, Tiamat spread her senses, probing the surroundings to determine if Yamato had survived.
As the dust began to settle, her attention was caught by a swift movement. A blur emerged from the haze, moving with incredible speed. Before Tiamat could react, the figure had pulled back their fist and slammed it into her thick, nigh-impenetrable scales with a powerful, resounding impact.
Tiamat felt a sharp pain as the blow managed to damage her from within, sending shockwaves through her body. The impact forced her downwards, burying the dragon king into the rubble beneath her. As she struggled to regain her footing, she sensed Yamato preparing for another attack.
Summoning her immense draconic aura, Tiamat unleashed a powerful wave of energy that pushed Yamato back, creating a temporary reprieve. With a fierce gaze, Tiamat rose from the debris, her eyes locked onto Yamato, now taking her adversary even more seriously.
"Hahaha finally a worthy mate!"
Tiamat eyes glint releasing even more aura around her and roared fiercely unleashing dominating pressure that Yamato recognized as similar to a Haki but not quite. A dragon is naturally top of the food chain therefore they can exert their will into lesser creatures but Yamato was not such a being.
"Our battle will be legendary!"
Yamato snicker at her jokes and shrouded her fist with Haki and Conqueror while using Observation Haki to avoid Tiamat incoming attack. Tiamat flew into the sky and produced a magic circle then flames that can easily nuke a city blasted towards Yamato at faster than lightspeed defying the laws of physics all together.
To counter, She created ice shards that intercept the blast freezing them while leaping into the air and took out her Takeru gripping it tightly.
[ Narikabura Arrow! ]
The attack was sent toward Tiamat who winced in pain but felt more exerted finding a powerful mate that could challenge her. The previous ones that tried weren't interesting, especially Ddraig who stole treasure from her.
"You amused me, Yamato Kozuki!"
Tiamat roared in excitement and prepared another attack swinging her arms sending wave attacks toward Yamato who dodged them then block when Tiamat appeared behind her but this was all in her vision and dodge when Tiamat appeared and countered with the swing of her Takeru pushing away Tiamat but it wasn't enough to put her done.
Without a word, Tiamat reared back and unleashed a torrent of blue flames. Yamato reacted swiftly, raising her kanabo to deflect the inferno. The heat was intense, but Yamato's resolve was fiercer. She charged through the flames, her kanabo spinning with deadly precision.
The clash was immediate and brutal. Yamato's kanabo struck Tiamat's scales with a resounding crack, sending sparks flying. Tiamat roared, her tail whipping around with the force of a hurricane. Yamato barely managed to leap over it, her agility saving her from being crushed.
Landing nimbly, Yamato countered with a series of rapid strikes, each blow aimed at Tiamat's vulnerable spots. Tiamat, however, was not merely a beast; she was a cunning adversary.
"Impressive." Tiamat hissed, her voice a cold whisper.
"But you'll need more than brute strength to defeat me." Yamato smirked, her grip tightening on her weapon.
"Then I'll show you my true power!"
With a roar that shook the mountains, Yamato channeled even more power than before and lunged at Tiamat, her kanabo a blur of motion.
Tiamat met her charge head-on, their clash creating shockwaves that uprooted trees and sent boulders tumbling. Yamato's strikes were relentless, each one a calculated blow designed to weaken her opponent. Tiamat responded with equal ferocity, her claws and fangs seeking any opening in Yamato's defenses.
Without another word, Yamato charged, her kanabo swinging in a wide arc. Tiamat responded with a blast of blue fire, the flames roaring towards Yamato. She leapt aside, feeling the heat sear the air where she had stood moments before.
Yamato closed the distance with incredible speed, her kanabo crashing into Tiamat's heads with a resounding thud. The dragon roared in pain and fury, her other heads lashing out in retaliation. Yamato ducked and weaved, avoiding the snapping jaws and deadly claws, her movements a blur of grace and power.
With a mighty leap, Yamato aimed a crushing blow at Tiamat's central head. The dragon reared back, but Yamato's kanabo struck true, sending a shockwave through the air. Tiamat staggered, but quickly regained her footing, her five heads snarling in unison.
"You are strong, but I won't let you win that easily!" Tiamat bellowed, her tails whipping through the air.
Tiamat's claws raked through the ground, sending boulders and debris flying towards Yamato. She smashed the rocks aside with her kanabo, her eyes never leaving the dragon. With a burst of Haki, Yamato's aura flared, a shimmering manifestation of her willpower. She charged again, her kanabo crackling with energy.
The two combatants clashed in a furious exchange of blows. Tiamat's heads struck from all directions, while Yamato countered with swift, powerful strikes. The forest around them was torn apart, trees splintered and the ground cratered by the force of their battle.
Suddenly, Tiamat's heads moved in perfect synchronicity, launching a coordinated attack. Yamato barely had time to react as she was hit from multiple angles. She gritted her teeth, feeling the sting of claws and the burn of dragon fire. But she refused to back down.
With a roar of defiance, Yamato unleashed more power. Her kanabo glowed with an intense light as she channeled her Haki into it. She swung with all her might, the force of her attack splitting the air with a deafening crack. Tiamat's central head took the brunt of the blow, reeling back in agony.
Seizing the opportunity, Yamato followed up with a relentless barrage of strikes, each one landing with devastating impact. Tiamat's roars filled the air, a cacophony of pain and rage. Yamato's final strike was a thunderous overhead swing that connected with Tiamat's skull, sending the dragon crashing to the ground.
The battle raged across the forest, neither combatant willing to yield. They moved with the speed of faster than light itself, their forms a blur as they exchanged blow after blow.
Tiamat, sensing the tide turning, unleashed her more power. Her body erupted in blue flames, and she launched a barrage of magical attacks. Yamato was forced to retreat, using her kanabo to deflect the deadly projectiles. She knew she couldn't keep this up forever; she needed to find a way to turn the battle in her favor.
She channeled the energy into her kanabo, the weapon glowing with a fierce, radiant light. With a mighty swing, she unleashed a devastating wave of energy that cleaved through Tiamat's defenses.
Tiamat roared in pain as the attack struck true, her form flickering. Yamato seized the opportunity, closing the distance in an instant. She delivered a final, earth-shattering blow with her kanabo, sending Tiamat crashing to the nearby mountains.
With a roar that shook the mountains, Tiamat recovered and lunged forward, her massive claws tearing through the air. Yamato dodged to the side, her movements swift and fluid. She swung her kanabo with all her might, aiming for Tiamat's foreleg. The blow landed with a resounding crack, but Tiamat barely flinched.
"You'll have to do better than that!"
Tiamat growled, whipping her tail around in a deadly arc. Yamato barely had time to raise her club in defense before the tail struck, sending her flying into a nearby tree. The impact was jarring, but Yamato pushed herself to her feet, determination burning in her eyes.
Channeling her Haki, Yamato infused her kanabo with a shimmering aura. She charged at Tiamat, her strikes faster and more precise. Each clash of steel against scale sent shockwaves through the forest, the sound echoing for miles. Tiamat countered with blasts of icy breath, freezing the ground and trees in their path. Yamato weaved through the onslaught, her body moving like a leaf in the wind.
In a burst of speed, Yamato leaped onto Tiamat's back, her kanabo raised high. She struck down with a force that reverberated through the dragon's massive frame, causing Tiamat to roar in pain and fury.
Tiamat reared up, trying to shake Yamato off, but Yamato held on, her grip unyielding. She tightened her grip on Tiamat's scales, her kanabo crackling with energy.
[ Thunder Bagua! ]
Yamato shouted, bringing her weapon down in a devastating arc. The impact created a shockwave that split the ground beneath them, sending debris flying in all directions. Tiamat roared in agony, her scales cracking under the force of the blow.
But Tiamat was not defeated yet. With a furious roar, she unleashed a torrent of blue flames, engulfing Yamato in a searing inferno. Yamato gritted her teeth, her Haki shielding her from the worst of the flames, but the heat was intense, almost unbearable.
Drawing upon the extent of her power, Yamato pushed through the flames, her eyes locked onto Tiamat's. She charged forward, her kanabo a blur of motion. Tiamat retaliated with a flurry of claws and teeth, each strike more vicious than the last. The two combatants moved in a deadly dance, neither willing to give an inch.
With the conclusion growing near, Yamato focused all her energy into one last attack.
[ Divine Swiftness! ]
She shouted, her body moving faster than the eye could see. She struck Tiamat's chest with a series of rapid, powerful blows, each one infused with Haki.
Tiamat let out a final, ear-piercing scream as the force of Yamato's attack sent her crashing to the ground. The mighty dragon lay motionless, her scales broken.
Breathing heavily, Yamato stood over her fallen foe, her body bruised and battered but victorious. She looked up at the sky, the sun setting behind the mountains, casting long shadows across the Asora.
Tiamat scales were badly damaged and her body twitched bleeding all over while Yamato stood having minor scratches but still better than the dragon king.
"You…you held back. I sense you're stronger than what you exert." Tiamat spoke changing her tone and her emotions filled with respect and a hint of lust as she healed from the attack since Yamato doesn't have anything that weakens the dragon.
[ Tiamat's affection has reach Max! ]
[ Status: Eternal Mate (Finally a mate that I can bear a child with. She's strong and powerful.) ]
[ You have defeated Tiamat! ]
[ You have received Wailing Dark! ]
Tiamat stood back into her feets looked at Yamato who also started to recover due to her Mystic Oni physiology and stored her Takeru before bringing them back. She returned to her human form wearing her school uniform instead of her Wano outfit.
"That was incredible!" Tomoe couldn't believe her eyes that Tiamat was defeated in spectacular manners where if they fought in the familiar forest then the entire place would have been removed from existence!
"This is the power of our master! Even Lady Tiamat was no match!" Mio exclaimed eagerly, praising Yamato as if she was goddess while Tiamat would have been offended hearing her declaration if she didn't experience it first hand.
Yamato's attack penetrated her defense like Ddraig's penetration and withstood it because of her experience battling Red Dragon Of Domination.
"Indeed, she's quite the challenge. And as we agreed upon you are now my mate and master."
Tiamat said, forming a contract with Yamato while a blinding light shines around the dragon king that transforms in the shape of a beautiful woman with straight and long beautiful pale blue hair, dark blue eyes, and a cold atmosphere that radiates from her beauty. She possesses an extremely powerful dragon aura within her body. She also wears a navy blue skirt, and her entire body is doused with the color of deep blue.