C2308 Berserk Blood(1)

They just stood outside the door and waited for almost four hours.

The door of the study was still tightly shut. Ye Fei didn't know what was going on inside. Although Ye Fei wanted to go in and take a look, he was still afraid of disturbing Zhou Huoyan's research, so he could only suppress his emotions.

"Everyone, I don't know how long my master will study, but in the past