In the next two days, apart from cultivation, Lu Yao was studying a way to perfect Murong Clan's Tianyuan Fist's internal strength formula. Although Lu Yao's current strength was no longer the same as before, it was the first time that he tried to set a suitable internal strength formula for other people's martial art technique. He felt he was in a dilemma.

Many of the bold ideas from before seemed infeasible when he implemented them. Some formulas of Breath Training were ...