C341 Nine Yin Qi

Lee Dabao frowned and raised his head to look at Mei's room. He could only hear a low humming sound coming from the room. It was obviously coming from Mei's room.

What was going on? Why did this sound come from Mei's room?

Just as he was wondering, another sound suddenly came from the room. Humph... This time, it was even bigger than the last time