C231 Requirement of the Sucumis

When he arrived at the entrance of his dorm, Qin Feng opened the door and saw it was clean inside. It didn't look like it had been empty for three years.

"This is strange!" I've been gone for three years, but there's not a speck of dust here! " Qin Feng said with a puzzled expression as he stood at the door and looked at the situation inside the room.

"Of course!" At this moment