The enormous shockwaves from their clash directly destroyed more than half of Hunger Hell. If they kept fighting, Impel Down itself would probably be destroyed by their hands sooner or later.
If Impel Down were destroyed because of their battle, it would be a vicious slap in the face of the Marines and the World Government. The Marines and the World Government would never let them go. They would make the two of them their top targets. Then Kaido, King, and even the Beasts Pirates would never know peace, let alone have any room to develop.
Besides, King had lived here for a long time and did not want to see Impel Down destroyed by their hands. His figure flashed as he rushed toward the upper levels of hell.
"Take this outside."
"If we truly let loose and destroy Impel Down, the two of us will have to face the pursuit and suppression of World Government experts at all times!"
As the lingering words rang out, Beast Kaido's thoughts turned. He did not hesitate for long before following him out.
Impel Down truly could not be destroyed. Otherwise, the World Government might not be able to kill him, but they could suppress him... If he really enraged the World Government and made them spend tremendous effort suppressing him forever, that would be terrible.
Besides, it was the same no matter where they fought.
Beast Kaido was no slower than King, perhaps even faster. In the original story, Kaido was the Four Emperors' strongest in defense, but that did not mean his strength, speed, and destructive power were weak. It was only relative.
In the anime, Kaido had been relentlessly pummeled by Luffy for an entire episode before using Thunder Bagua to smash Luffy straight out of combat. In the manga,