C76 Mystery Library Upgrade

Sensing Wu Shuang's abnormality, Soong Tan asked with concern, "Wu Shuang, what's wrong with you? Are you feeling uncomfortable anywhere?"

"No, nothing." Wu Shuang regained his senses and clenched the Blood Crystal in his hand. He looked at Zhou Feng and asked, "Captain, can I buy this piece of Blood Crystal?"

"Ah? Little Wu, you're not having a fever