C150 Retaliation

When he got home, Wu Tao went to his room to practice controlling his strength according to Yue Yi's teachings. Right now, he could at most activate the Power of One Bull, but the Power of One Bull was not something that his current physique could handle.

As for the usage time, it was the same as Yue Yi. Before Yue Yi upgraded his Qiongqi Amber, Yue Yi could only use it for one minute