Dodgy mana crystal.

The young lady who had been shocked out of her mind was instantly brought back to reality as she heard these words. What was he going to demand? Was he going to blame her for is injury, and demand compensation? Either way she was going to have to listen to his demands, because there was no way they could defend themselves if he wanted to kill them. And to be fair, he had done way more than what he had been asked to do, and if he wanted compensation then he deserved it.

"First of all, I'm keeping this, I worked hard for it after all."

As he said this, Ark took out a glowing, fist-sized crystal from his spatial bag. This amber crystal was the angel's mana crystal, which was all that was left of the angel, except for the limb. The young lady was a little surprised, but not by the fact that he had killed the angel, but more so by the fact that he showed her the crystal, and said he was going to keep it, he could've just done so without saying anything.