The person before him was dressed in a black palace robe.

Her expression was indifferent, and there was not the slightest fluctuation of aura on her body. Standing there, if not seen with the naked eye, she would be completely undetectable even under divine sense exploration.

Cao Tieniu hurried over at the first moment, clasping his fists and bowing in salute: "Junior Cao Tieniu of the Four Seas Gang greets Supreme Guan Sect Master. I apologize for not welcoming you from afar, and I hope for your forgiveness!"

His heart was already uncontrollably pounding.