Kisuke's whistling sword arc smashed through the barrier and instantly reached Tiamat, causing it to immediately sink into her skin from her right shoulder to her left flank.
But at the same time, a bombardment from the sky came down hard and there was no space for Kisuke to dodge. As if multiple high-yield bombs exploded at the same time, the world instantly lit up in blinding light.
Yoruichi and Serafall who escaped the range of Tiamat's attack first immediately looked back while thinking it'd be hard for them to survive this sort of destructive attack. Although both of them were capable of very destructive attacks themselves, it's not the same story for their defenses.
Serafall swallowed a mouthful of saliva and asked nervously, "He'll be able to survive that, right?"
Worry couldn't escape Yoruichi but she still reassured her, "Unless it's instant disintegration, he won't die that easily."
The blinding light ceased and the world instantly darkened due to their eyes still not being able to adjust. However, they could still see what was happening despite the poor visibility that a white shadow was flying around Tiamat who seems to have transformed.
With red lines running along her entire body, Tiamat grew another two pairs of giant horns on her back that seemed to act as her wings as she started floating above her black mud. She also grew a Dragon's tail behind her and her entire lower body transformed into that of Draconic too. Thankfully, even though her shackled arms had been released from her neck, her left arm was already missing and there was a long cut across her entire body that didn't seem to be healing.
The white shadow, on the other hand, was attacking Tiamat from various angles with his sword that was being held by his remaining arm. Kisuke looked like an injured small bird flying around Tiamat.
"He can't heal himself?" Serafall asked. Aside from the missing right arm, his left leg was also nowhere in sight along with one of her horns and the multiple lacerations on his entire body.
Yoruichi's heart sank when she saw this and hurriedly turned to Serafall, "Serafall! The black mud! That's the source of Tiamat's authority over this space! We have to take back control!"
Serafall looked down and saw that the black mud had already expanded yet again. There's supposed to be a large and deep crater because of the earlier explosion but it only still looks like a slightly wavy sea.
Serafall took a deep breath and said, "I probably won't be able to do anything if I start contesting that."
Yoruichi knew what she meant. Since it could reanimate the dead, there's probably going to be a resistive force. She worried about Kisuke being all alone but what was important right now is to break Tiamat's field advantage, "Alright. I'll protect you."
Serafall closed her eyes and her ten Devil wings turned to dust.
Yoruichi's eyes widened because this was the first time she had done this, 'But why? Their wings are their pride.'
Serafall's transformation didn't just stop there as her white hair grew longer until it reached her feet and a blue and white glistening robe materialized around her body. Soon a crown of ice that looked like a halo with multiple rays around appeared floating above her head. Along with that, several large rings also appeared behind her with twelve blade-like icicles connecting them.
Serafall finally opened her eyes and her former blue eyes had turned purple, giving a contrast to her overall appearance.
Demonic Power exploded from her and it almost physically materialized when she swung her right arm at the same time. In an instant, mountains of ice 'sprouted' all around the black mud, forming a gigantic blooming flower that spanned several kilometers. Immediately after, these petals the size of mountains started encroaching upon the black mud and freezing it, which was equivalent to Serafall freezing and halting Tiamat's authority itself.
Though despite the intense cold that the ice was releasing, Yoruichi didn't feel any of that.
Tiamat immediately noticed this and ignored Kisuke for a while to release a shrill scream. But instead of controlling the energies around them, it was a call for help.
Eleven spots on the black mud began bubbling and eleven black, humanoid, winged beings with a single horizontal mouth full of omnivorous teeth for their heads emerged.
Yoruichi prepared herself as this was the resistance that she was already expecting. What she was not expecting however was their creepy echoing laugh and sudden acceleration several times the speed of sound and them instantly surrounding her and Serafall.
Yoruichi saw their tentacles-like limbs go rigid and become sharp blades that all aimed at Serafall, "No you don't!"
Yoruichi turned into a flash of lightning and went through all of Tiamat's spawns, cutting through their abdomens and necks before blasting them away. Naturally, Yoruichi knew that it wouldn't be that easy and she was right when she saw them regenerating and reconnecting the cut parts.
"This won't be easy, huh?" Yoruichi muttered while remembering the moment when these humanoid beings' blades were about to land on Serafall but the latter didn't even move a muscle and just focused on her task, 'That trust is heavy... But it's something I'm willing to carry.'
.
.
.
As Yoruichi and Serafall have guessed, Kisuke's regeneration was severely suppressed and the only thing he could do right now was to heal small wounds and close the big ones. Nevertheless, he wasn't too concerned with his injuries since it was something he'd already taken into account when he decided to go for mutual destruction, 'The wound I inflicted on her is still a lot worse than my current wounds.'
With the 'poison' he embedded within his attack, it'd be hard for Tiamat to physically recover, 'Well then... It's a shame that Sera-tan had to reveal her cards this early, but I only have to wait until the 'poison' fully takes effect and finish this in one go.'
Kisuke looked into Tiamat's eyes and although there was no emotion behind them, he could tell that she was ready, 'Time to cast the biggest bait in history!' To avoid revealing anything he was planning to do, Kisuke didn't tell anyone, including Yoruichi and Serafall, what sort of deal he signed with Tiamat.
'First step, fulfilling the contract of killing Tiamat.'