Jay watched as Kamui protected himself from the initial burst from the boom-boom. Still, he continued with his initial plan and made his way forward with the close in. He was more than aware of the extinguishment of the layer of sound armor and even as he continued closing in, the magnetic chakra could be noted in pushing against the extreme heat in front of him and he had a plan for it as well. It wasn't anything new to his senses, so he was able to push his foot down to the ground just as he impacted the force. Because he had so much inertia behind him, he was able to resist the force for enough time to do what he needed to do.
Of course, before continuing further, there was a lot of information that was detriment to the Shodai's health. At first sight, the man was smart in protecting himself from the bang of his Fire Tech, but chose to stay in the flames for the remainder of his term. It was even worse, because the oxygen in his immediate area had been ignited, leaving nothing there to feed his lungs. So, not only would he be bathing in extremely hot flames at the minimum being enough to boil gold, and with the absence of the armor, he was highly susceptible to extreme burns.
And, back to present, with the man not allowing him to fling him out of the fire, the Nara would be forced out. Of course, he would leave a present for the HOtokage in the form of a three-piece combo via an instant delivery service.
The nature of this would be as follows, the first part would be leaving his Flying Thunder God Marker with his step. Of course, he would still be flung back towards the prescribed rock pillar Kamui designated for him, but in the midst of his journey, he would leave the rest of his surprise for the HOtokage. With a single thought, he would unseal The Ignis Bomb from one of his finger seals and he would immediately teleport it to the marker where the seal would crack upon impact with the magnetic debris, resulting in another boom.
Leaving the literal sea of flames in Kamui's vicinity would cost him zero chakra because of the work around. These flames would be 4,500 degrees hotter than the flames from the Sudden Ignition and several dozen meters in every direction around him. Kamui was still hampered by the veil of his chakra around him, so he would be unable to perceive his actions. By the time he made contact with the rock pillar, he would have long righted himself in the air and landed nimbly on the pillar like the feline inside him. In front of him was the sea of flames and the sight was beautiful. There was a large distance between the two of them now, Kamui now in the midst of a larger, more intensely hotter, pool of flames, all before he would be able to activate his own Eternal Mangekyo Sharingan, and the sea of flames would only continue to expand by several meters a second as time continued to drone by.
Flying Thunder God Stamping Seal
Unseal [Ignis]
[Ignis] boom via Flying Thunder God