Every single villain from every anime has been transported to one place. There are villains such as Kaido and big mom from one piece, Kaguya and Madara from Naruto, Z broly from dragon ball Z and frieza from dragon ball, Lelouch,Garou from one punch man,eren from attack on titan, Light Yagami from death note, Esdeath, Makima from chainsaw man and much more....You get transpoted there as well.

Z Broly: KAKAROT!!! Wait...huh?

Light: spits coffe in shock

Frieza: what is this foolishness?!?