Xiu Xian Gui Lai Zai Xiao Yuan

He used to be the most ruthless emperor in the immortal world, knocking down all his fellow immortals. He had tamed and ridden a Golden Dragon, turned a White Tiger into a cat, and made a phoenix into fried chicken. He had slept with the goddess of the Nine Heavens and stripped in the Heavenly Palace… Now he has returned to the urban life and become an ordinary teacher for chitchat. Girls, get your clothes on, I'm here to teach you some manners!

(Source: WeComics)