C575 The Happy Lau Yiyi

"It seems there should be instructions, but the crucial part is missing, so I'm at a loss on how to use it," Lau Yiyi said, frustration evident in her tone, her reluctance clear.

She was seated on the couch, lips pursed in a pout, her displeasure plain to see on her lovely face.

"Ye Feng, I'll give you this stone," Lau Yiyi announced suddenly