In the battle with the Primordial Thrones, Rowan had hardly shown his true might. He had used his dimensional flesh and soul because that was what his allies and enemies knew of his power, and he had kept his Origin abilities aside, even restricted his Ouroboros Serpents from showing their true might in the battle.
It was due to how well Rowan had instilled his will upon these serpents that enabled them to remain in place, despite how much their instincts fought against it.
It was this will that drove them to sleep, and now this will of restraint was weakening, and it was Divus, the eldest, who detected it first and awakened, followed by the rest.
Suddenly, the will holding them bound finally snapped, and the Ouroboros Serpents roared. The sound that emerged from them was indescribable because there had been nothing like them in existence before, and the sound they made was something that Reality struggled to interpret.
And then, Divus spoke.
