C965 Subterranean tunnel

"Are you joking?"

Cheng Feng frowned: "Giving half a kilogram of dragon blood every half year, and that one thousand kilograms, won't we have to wait a thousand years?"

"How about this. If I don't have enough dragon blood, I'll use something else to withstand it."

Cheng Feng said: "I'm leaving this place right now, I don't have the time to waste with you