Transferring Blood

"You killed your subordinate just to test my strength? I have never seen someone so evil and cowardly as you," the leader said in a hoarse voice.

"Oh, that guy wasn't my subordinate or anything. I just met the dude like 5 minutes ago," Ning said.

"But he called you 'master'," the leader asked with a face full of confusion. 

"Yeah, I can see where the problem is, but it doesn't matter. Since you are the leader, you should have more answers than these dead guys," Ning said.

The leader didn't say anything and instead looked at the bucket behind Ning and suddenly got angry. "You ruined that bucket of blood, didn't you?" he asked angrily. 

"The hell? What do you want to do with that blood? Drink it?" Ning asked. "So what's wrong if it's polluted? You guys use the blood marrow anyway."

"You will die for this," the beast shouted and lunged at Ning.