C967 Secret Manuals on the Bookshelf

Father of Yang seemed to be a little excited as he explained, "Yang Bo has never cared about the details, so the room is very messy. I'll take you guys to take a look."

Zhou Xin excitedly followed Father of Yang. Although Xue Zhong was curious, he still followed him.

Soon, Father of Yang brought the two of them to a room. He pointed inside and said, "This is it