C1793 The Silver Guard of the Northern Region's Seven Sovereigns

Long Wanshou's eyes narrowed slightly.

That was Black Fiend King, a mighty Mid Nine Nirvana Stage expert.

But...

Black Fiend King couldn't even withstand a single strike from the mysterious man in black, and was instantly killed. Not only that, even his seven incarnations were killed.

How terrifying was this technique?

If it was him