Harvesting Mana Crystal

"Well, it looks like this food had beaten you," I said mockingly to the werewolf, as I took out the sword from its chest, it wanted to reply to me but can not as it is being held immobile by my Killing energy.

'Thud'

After taking out my sword from its chest, I gave the werewolf slight push and it felled on the ground.

"Do you remember what I promised you earlier?" I asked as I removed the adult palm size disk from my storage.

Seeing the disk, the look of absolute horror appeared on its face, It started to show a struggle but it was not even able to move the hair on its body.

The killing energy released special energy called killing energy, that energy had many uses and making one immobile, dulling one's senses are one of them.

The disk in my hand is crystal disk which is used by all humans on the Grimm battlefield and is an absolute thing of a nightmare for Grimm race monsters.