C140 Curiosity Killed the Cat

"What are you doing?" A stern voice came from behind.

Han Guanlin was shocked, and the file bag in his hand fell to the ground.

Seeing who it was, Han Guanlin's face turned pale. "Pu... Teacher Piao."

Master Pu frowned when he saw the file bag on the ground. He walked over and picked up the things on the ground. He patted the dust off the bag and turned to ask