Blood Crystals

"After Micheal left, I directly went to their main base in the Ruin, hoping to find out what they are doing in the ruin to bring such high numbers," Professor begin.

"I was able to infiltrate inside quite easily and even able to went near the core area before getting discovered and attacked," "There were three Leader-class Grimm Monsters, aside from the one I had fought before, there was also a Curse Master and a Poison Master," the Professor said.

"Did you able to find out what they are doing?" Councilwoman Marla asked. "Yes, I did. If not for that, I would not have been this injured," the Professor said, confident laugh, and a palm-size blood-red crystal appeared in her hand.

I was shocked seeing the crystal as I know what it is, and not only that, my runes begin to react, wanting that thing. If they could, they would have leaped out of my body and consumed the Blood Crystal in the Professor's hand.