Kai, determined to restore order, encounters pockets of resistance where survivors are holding their ground against the monster onslaught.

The survivors reveal that the portals started appearing shortly after the resurrection of the King of Destruction, leading to the surge in monster activity.

Kai learns that the monsters are not just mindless creatures; they are organized and led by powerful beings, each corresponding to the different grades.

As Kai surveys the chaotic scene, he decides to embark on a mission to close the portals, defeat the monster leaders, and restore balance to his world.