C3664 Kill Hai Tian

When the old man saw that Niu Thirteen had appeared, he also glared at him.

He didn't underestimate Niu Thirteen in the slightest. Although he was only at the level of an early stage Great Emperor, he understood that there were many geniuses in this world who could kill those above their cultivation level.

Even though Niu Thirteen was only at the early stage of the Emperor's Realm