C506 A Duel

"Studying it seriously, but I forgot the basics. . . " Guo Feng said as he pushed the door open and came in.

He stood at the door and seemed to be muttering about the indoor hygiene. In the blink of an eye, he looked at the two of them.

There was a stack of instruction manuals placed in front of the yellow root pillar. There were oil brushes and pencil brushes on them