C915 Little Brother Said That My Medical Skills Are Superb.

Xie Yun began to teach the second phase.

Xie Feng listened attentively.

In the deep forest, the two of them began the second phase of their study.

...

"Young Master Xie, now, you have to try your best to run forward. Use all your strength and don't let me catch you within half a minute."

"Just hold on for half a minute, that's all. Is that right?"

"Right!"

"Alright, then I'll start running