Infiltration

The entities that the Vessels could call would depend on their affinity with the Shadow Realm or any other Realms, so they would have different beings that would possess them.

"Hahaha!"

As Cleo felt the overwhelming power coming into his body, he couldn't help but laugh.

Reed, who was beside Cleo, noticed this as well…

"You're a daredevil! Did you call the remnant spirit of the Shadow Emperor?!" He shouted in shock. Although they were ready to die, they should at least call an entity that would not just go on a rampage. If he really called for an entity he couldn't handle, the students might be hurt in the process!

Anyway, it would still take a few seconds more before the two of them lose control over their bodies. So, at this time, they could still hold a conversation.

"Of course not! My body will explode if I dare do that… I just called for the strongest I can connect with. The Moonlight Reaper!" Cleo said, followed by a chuckle.