The King of Chaotic World is a Manga/Manhwa/Manhua in english language, Adventure series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

You Miao is the son of the richest man. He has been cute and beautiful since he was a child. He bought a dog Rong slave Li Zhifeng for 200 taels by accident. He cured his illness and strengthened his body. He also gave him the jade pendant he carried with him. get well soon. Li Zhifeng recognized You Miao from the moment he was rescued.