Mephistopheles, the Secret Weapon of the Pandemonium

...

After the staredown, Mephisto suddenly leaped into the air and started rushing toward a certain direction. He seemed to want Shin to follow him where they could fight to their heart's content, and no one could disturb them.

Shin did not mind. He glanced at his friends before turning to Diablo for a moment. He then disappeared from his current location and appeared a few meters away from Mephisto, who was running ahead of him. He would entrust this place to the others while he dealt with this guy.

Amon finally opened his mouth. "It has been a while, Diablo."

Diablo smirked at those words. "Don't act like you missed me or something, Amon. We both know how much we want to get rid of each other."

Amon shook his head and smiled bitterly. "If not for you betraying the leader and the organization, then we will never be in this situation."