Chapter 564 Yang Yu is Nothing Special

Learning that Cassidy had been promoted, Yang Yu was quite surprised.

What Yang Yu found even more unexpected was that Cassidy had injected two types of genetic drugs, resulting in a mutation.

Normally, with her constitution, she absolutely couldn't withstand the effects of two genetic drugs at the same time, she would have exploded and perished.

But why Cassidy didn't die, Yang Yu speculated that the first genetic drug had enhanced her constitution, allowing her to withstand the effects of the second genetic drug.

Furthermore, the second genetic drug hadn't been fully injected, which also meant its effects hadn't reached their limit, allowing Cassidy to maintain her sanity.

If the second genetic drug had fully taken effect, even if Cassidy wouldn't have died, she would have turned into an irrational killing machine.

It could only be said that due to an unexpected stroke of luck, Cassidy had turned misfortune into a blessing, it was all fate!