C1156 Celestial Dragon Yuan

"Celestial Dragon Yuan?"

Huang Lao's eyes stared wide: "Celestial Dragon Yuan, ten billion military merits per jin, are you sure you want to exchange for it?"

"I'm sure." Cheng Feng nodded.

In any case, he would probably need to use dragon essence to cultivate in the future.

Since he was going to use it himself, then he might as well use the best one