Ren remained unfazed releasing a dreadful aur around her while the clone of Yuuki, or Killer Fang bare its teeth. She activated her ability, selecting among her Eight abilities to be used against Killer Fang.
"So you aren't getting scared…. undisciplined like your human self."
Killer Fang spread his arms preparing for an attack while Ren's eyes change gaining her Mandala and said.
"I can get well with people…who feel fear from my pressure."
Ren watched as he unleashed a powerful two wind cutter that sliced the air towards but she simply flew into the air while Killer Fang followed suit.
"And I make those who don't fear it…."
She gave a flurry of punches that strike Killer fangs body and strike his stomach then continued saying.
"Understand how different…"
Ren then did a front flipped kick to the ground and said.
"Our standings are!"
Killer Fang slammed to the ground but stopped himself standing on all fours like animalistic as it growled at Ren.
"GHHHH…"
Its eyes went wide, activating its ability surprised Ren and was about to bite her when.
"That attack—"
Within a flash vanished from her spot and appeared slamming Killer fangs head into the ground causing the ground to produce a web of cracks.
"Will be crushed before you can use it."
Killer Fang began to rise again only for Ren to look down on him and had her foot raise then said.
"You tried to bite me again, didn't you?"
She then stomped her foot into his head repeatedly cracking his face into the pavement causing a crater around them from the sheer forces of her attack.
"Guuhhh….OOOOH"
Killer Fang didn't let her continue and slashed his hands all over the place making Ren step back and have his face and the spike on his shoulder damaged only for it to instantly heal, surprising Ren.
"Your wounds are healing instantly…"
She then smiled, placing her fingers on her lips sadistically and said.
"I guess I can discipline you with force."
Ren then began to change her ability placing two new mandala into her eyes and boosted her power several folds then began to charge her foot with an immense force and launch the attack towards Killer Fang resulting in the entire mountain to be obliterated from the attack. She was smiling at the result of her attack and proudly said.
"This is your master's strength. Did you get now, Little dogg—"
Unfortunately, this is not the Former Yuuki, but instead an Asura in the mortal world. Ren couldn't react fast enough when Killer Fang appeared behind her.
[ Monster Calamity God Slayer Fist - God Slayer Ascending Attack ]
Killer Fang strikes her with a force that even she could feel bypassing her defense and before she could counter receive a devastating knee strike sending her at a blinding speed.
'What!?'
Ren was confused why she was taking damage and stopped midair trying to counterattack only for Killer Fang to appear again.
[ Monster Calamity God Slayer Fist - God Slayer Instant Attack. ]
He throws a volley of punches and different hand-strikes at Ren that she had hard time parrying and redirecting forcing her to step back visibly getting annoyed. She was not injured and only had smudges.
"You actually intend to fight me, I am your master and your mere dog."
Ren switches her Mandala with another and begins to combat Killer Fang moving faster than before while he changes his stance in all forces.
[ Watchdog Style + Formless ]
"GRRRRAAARRR!!"
They exchange blows creating craters below them where Ren was unexpectedly being overwhelmed by Killer Fang with his unpredictable and animalistic style of combat but she didn't want to lose nor admit it.
Her attack hidden ability was every time she took damage would gain the forces and use it to boost herself with the only limit being how much her body can take forcing her to release it.
The forces that Killer Fang hit her with were enough to demolish the city block with ease and was taking every attack without any damage through the ability.
Shuuki tried to attack them only to be disintegrated from their clash as the sound reverberated through the air. Shockwave after shockwaves rippled around them as Killer Fang tank each blow and regenerated every time he took damage.
"GRRRRAAARRR!!!"
He roared and released a wave of energy around pushing Ren, stepping back a few dozen meters away from Killer Fang as she watched his next move.
'Wait is that!'
He took a stance similar to Konomi when she used her [ Beast power ] turning his hand into a claw then swung towards Rem who evaded the attack.
[ Monster Calamity God Slayer Fist - God Slayer Claw Slash ]
The result sliced through the ground forming a small ravine around a meter deep. Ren was surprised at the result but didn't have the luxury of processing it as Killer Fang appeared and struck her with a powerful punch slamming her to the ground but this only resulted in a large crater as she spun and kicked his head pushing him back then repositioned herself again.
'Despite being on a rampage, his primal instinct let him keep with me.'
Ren thought to herself as she stepped back to charge her legs with even more power than before and as she was doing so witness Killer Fang did the same preparing to unleash a kick.
"This is the end, you will understand that I, Ren Yamashiro, am your master."
Killer Fang ignored her nonsense as no one truly owed him beside himself. Ren sadistically smiled then shot her attack towards him with enough force to demolish the entire large city.
Unfortunately, an attack like that was not enough against Killer Fang planting it's legs into the ground gathering forces from the earth creating a crack that's in a vortex pattern then unleashed a powerful kick.
[ Renewal Taekwondo - Recoilless Kick. ]
This technique requires the user to completely focus his energy on a single point, not wasting any movement. The kick itself doesn't require the user to balance his body with their hands. It is powerful enough to cut through a wide area of ground and split the sky, even if it is stopped midway.
Killer Fangs was able to slice through the shockwave heading it's way towards causing Ren eyes to be shocked as she felt fear for the first time in her life and felt her a slash on her body as she cough out blood from the internal damages as the sky split and the ground was cleave along with nearby mountains. Amazingly her clothes were still intact having the force bypassed it.
"You think this is over simply because you wound me!"(Ren)
She refused to give up and gritted her teeth, stomping her feet on the ground before she could fall, able to stop herself and immediately change her mandala.
[ Renewal Taekwondo - 3rd Stance Hwechook. ]
3rd Stance Hwechook is essentially Hwechook executed three times in a row either from left or right, followed straight away from the opposite direction, then from behind. If the victim flinches and tries to evade by going back, damage increases.
Killer Fang uses it causing Ren to receive trauma to her head as in front of her resulting in the ground to shatter and fall to ground still fully conscious gritting her teeth.
'I-Impossible! How can this be…I can't—'
She struggled to move her body then senses then her legs were ground by Killer Fang and slammed her body like a ragdoll on the ground and stood above her looking down at Ren.
"Puny, Master."
Ren became even more frustrated hearing his words yet unable to move and change her Mandala to recover. Killers Fag bare it jaws and activated [ Sacrificial Goat ].
[ Renewal Taekwondo - Baekdu. ]
In that moment before she gets killed by Killer Fang, Yuuki appears slamming his knee into Killer Fangs flinging him several dozen feet while Yuuki stood in front of Ren.
"Wakura…you didn't need to help me. I had everything under control."
Ren was annoyed that she was safe rather than the other way around and looked at the only person who did not fear her, always acting carefree and even dared to look at her.
"Really? What are you? A grave digger making her own grave?"
Yuuki was despised by Ren, unable to accept his carefree attitude before her. He had been observing how they fought and amaze how strong Ren was compared to the manga and most likely has more power even Killer Fang let her have the chance.
"Gaaaah!!!"
Killer Fang roared at him making Yuuki ponder how it still rages when he trained his mental state to always have control and thought it might awaken his past demonic self enhanced by Ren's own nature.
"Well this is going to get interesting...it's now you and me, buddy."
Yuuki said ignoring its animalistic growl at him touching his temple then had his eyes enter the [ Ultra Instinct ] states. He took a deep breath producing ripples around him and pumped his blood.
[ Hamon + Limit removal x 16 + No pain + Ultra instinct ]
He can easily transform but due to his inhibitors that suppress power in exchange for less wasteful energy where Yuuki always finds ways to improve and grow stronger. He refused to remove it unless it's necessary and wanted to test how far he would go.
"Alright, let's rock!"
Vanishing from his spot that barely caught a glimpse by Ren slowly recovered and shocked to hear the thundering explosion of their fight looking up where shockwaves form as they clash and make after images from the way they moved.
The two were the same with the other being mindless yet have the highest capabilities in utilizing his martial art as it is more on muscle memory.
'Yuuki Wakura…I won't let you get away with this.'
Ren, frustrated at being humiliated and defeated, has never been called Puny in her entire life. She was the best of the best. She was bested by the man who she wished to turn into her pet. Unfortunately her humiliation is not yet over.
[ Renewal Taekwondo - Axe kick ]
Meanwhile, Yuuki fought his clone where he flipped and did an axe kick slamming Killer Fang into the round, forming another massive crater as it roared then changed its movement.
[ Monster Calamity God Slayer fist - God Slayer Demolishing Palm strike ]
Yuuki's eyes went wide witnessing him apply techniques that he had learned and practiced. Garou was only able to display two techniques while Yuuki had made multiple bases of the mixed martial art that he mastered.
This derived from the [ Heavenly Destruction, Space Sundering Palmstrike ] The technique functions as a powerful close-range augmented palm strike that delivers tremendous force and damage; this palm strike technique has the secondary function of paralyzing the victim's muscles and nerves, typically rendering them immobile afterwards.
This version was superior but took a lot of energy and the only reason Killer Fang was able to use it was because of his consuming power from Ren and Kyouka. Yuuki barely evaded the attack by spinning his body to his right and kicking him at the side head.
[ Renewal Taekwondo - Spinning Top Kick ]
Then proceeded to drag him into the ground slamming him, However, he was able to do the same and kick Yuuki away from him where it stood trying to recover while he fixed his hair and thought.
'This is different from my normal fight with my clone…'
In that moment, Killer Fang seems to vanish, surprising Yuuki who uses his precognition to avoid the attack. He saw what would happen if he didn't dodge and immediately prepared himself.
[ Koei Style - Blink + Rakshasa Palm ]
Blink is a technique where the user moves at the moment that the user's opponent blinks, giving them the illusion that they have vanished while Raksha Palm is a palm strike with a twisting impact.
The force from the technique is transmitted from the back to the shoulders, the upper arms, then amplified and transformed into a powerful twisting blow by the spiral motion of the forearms that is capable of making blows able to disable limbs, rip organs and crack bones.
[ Water Stream Rock Smashing Fist ]
Yuuki immediately redirects the attack to avoid getting his body torn to shreds. Killer Fang then had its whole body exposed and Yuuki prepared an attack.
[ Heavenly Destruction - Shattering Thrust Palm ]
He pulls back his striking hand whilst twisting it, Yuuki launches a powerful palm thrust strike while twisting his hand. The force immediately causes a ripple on Killer Fang letting his air on its diaphragm to escape as his body zoomed into the air where it managed to stop itself midair and roared.
"GAAARRHHH!!"
"Good! I don't want this too end so quickly! Now come and fight!"