C156 Singing wife

"Did you see its ferocious look just now?" Hu Xiao'er asked.

"What?" female scientist looked at Hu Xiao'er with a puzzled expression.

"Just now, it revealed the vicious appearance of a rich wolf." Hu Xiao'er pointed at the zombies, "Is it possible, your vaccine is completely useless?"

"Useless? If it's useless