C588 Make Medicine

Hsu Yuan had already left. However, the old man in the room who Hsu Yuan called Academy Master once again focused his attention on the book in his hands, as if he had forgotten the existence of Chen Yu and Moo Su.

Moo Su stood at the door without saying a word. The atmosphere inside the room was silent.

"It's this way again!" Chen Yu twitched his lips. After waiting for a while