Different ways

Songcheng, City Lord's Mansion, late at night.
A man in black robe sneaked into the City Lord's Mansion quietly and came to the outside of the study of City Lord Li Mugong.
He knocked on the door gently, and the next moment he took off into the air, took a few steps on the roof, and soon disappeared into the night.
Li Mugong walked out of the study, squinted his eyes to look at the black shadow in the distance that blended into the night, and chased after it the next moment.
Five...