Cuffs
Belialthorn opened his mouth. "Yes, it's a skill. How do I come about it?" How would he explain? Should he start at the beginning?
"Well, years ago, monsters and Demons entered our world...."
"Wait. Demons? What are Demons? I know about monsters but I've never heard anything of Demons before." Cook interrupted. "Greylord have you?"
Greylord shook his head.
"And Kat? Have you?"
"I have, I heard about them just before my sleep," Cook opened her mouth but Kat was fast. "It's all connected, we'll talk about it later," then to Belialthorn. "Continue."
"Humans have no way to defend themselves, not until the system came and gave us the ability to level up through the means of taking in mana...or killing." Belialthorn paused, waiting for the question he thought would come as he mentioned killing but no one bat an eye. So he continued.