"My price is the whole World with everything included in it, and you clearly can not afford it, so go say 'Hi' to Yama for me!"
It wasn't only his words, but also the way he said them. He truly believed what he said, he truly believed that was his price, he wanted the World and everything in it for real.
As for the second part of his words, they were a bit of a cliched joke, but it was the kind of serious joke.
While he said those words just for a pun, he truly intended to kill the commander and every other mercenary on the camp.
The commander in front of him seemed a bit surprised by his words, but he didn't get mad, as he just looked at Eric with piercing eyes, and said,
"Do you think you are capable of sending me to Yama so I can greet him for you?"
Eric was a bit surprised by his attitude, as you wouldn't normally expect such behavior or attitude from a mercenary medium camp commander, so he got a bit curious about him.
