Although Qin Yu was a little curious about the strengthening agent that could improve one's physical body, he was not surprised.
There was a record in the library of Jingdu Martial Arts Association stating that that many prominent cultivation families would soak their bodies in some heavenly treasures, beast blood, and other similar items, or even inject them into their bodies, in order to increase the potential of their descendants.
Another example of this was when the Jingdu Martial Arts Association absorbed Yan Ruoxue's blood. It was really for the same reason, but everyone said it was different.
However, for Qin Yu, this was indeed an opportunity.
Right now, Qin Yu's spiritual energy was depleted, and he was unable to cultivate. The only way to increase his strength was to increase his bodily strength.
It would take four whole days and nights to go to the laboratory. A desperate man like Qin Yu would definitely not waste a single second.