C915 Quaternary Period

Regarding this kind of period, Jiang Wuchen already knew about it at the time of Underworld, so it was not strange. However, Mi Hsinghee did not know about it.

Xu Hai said patiently: "There are many differences, let me explain in detail. All of these things, in the entire Martial Arts Academy, other than Elder Feng and I, no one else is clear.

"Learn from me, you're lucky." As he spoke