Who is the real dragon?

"Wait. Wait." Liam coughed up some blood and weakly mumbled. "I will accept… wait…" He tried to get up and sit straight.

"Oh?" The big guy stopped and did not lower his feet. His eyebrows shot up in surprise. The tower master had not expected Liam to accept his proposal this soon. 

Maybe the threat of crippling him had worked? But it was not enough. He had angered him for so long. He needed to vent out more.

He watched Liam gulp healing potions and mana potions in amusement. He didn't have a problem with this because there was no fun in beating up a dead dog.

So he was waiting for Liam to recover, and then he would, of course, once again thrash him around to his heart's content. 

How dare this lowly insect steal from him? He needed to be taught a good lesson!

But suddenly, his face changed. The tower master watched Liam take out some flask and drink from there. What was this? What was he drinking?