C619 It Worked

Yue Feng began to immerse himself in the research. Manager Bu was very meticulous. He explained the manufacturing and research process of demon blood to Yue Feng in order to let him understand it in detail. After all, not only would this allow Yue Feng to find a way out, it would also allow Yue Feng to accept his favor and teach him the acupuncture technique.

Yue Feng was also very focused