Worldwide Beasttaming: I Can Design Evolution Lines - Chapter 422 - : Experimenting on Old Bull!

... ull had a long face as he walked out of the basement. Then, he saw that outside the basement was a laboratory!

Mu Xuan nodded in satisfaction. “Go and lie on the bed by yourself. I’ll draw some of your blood first…”

Old Bull had a bitter expression. He remained quiet. He was at the mercy of others. He… had accepted his fate!

Just like that, Old Bull began his miserable life as Mu Xuan•s test subject!

Mu Xuan also suddenly had an idea. What was going on with genetic ma ...