The Big Black Snake swallowed two crystal cores in one bite, and its eyes became a bit brighter.
"Why do the crystal cores you give me smell better than the ones I take out of the brains of zombies and zombie beasts myself?" The Big Black Snake was extremely curious, and it was quite comfortable being petted by this human.
"These crystal cores were purified by my sister-in-law. She says there's a volatile energy inside that's bad for the body, so she helps purify it," Yin Chuchu said proudly, thinking her sister-in-law was very impressive.
The Big Black Snake spoke astonishingly, "I want to follow you guys if you give me these crystal cores."
"What did you say?" Xu Mumu widened her eyes, thinking she was having an auditory hallucination.
"We can't afford to keep you, there's not enough crystal cores," Yin Yang quickly started calculating in his mind. This was a level seven mutant beast, the current top combat strength.
