The Great Sage is a Manga/Manhwa/Manhua in english language, Manhua series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.nl fastest updating comic site. The Summary is

Gu Cheng was teleported to a mysterious world of cultivation and became the First Young Master of the Zhong Yong Residence. To avoid his aunt's sneaky attacks, he left town and entered the Night Division, which keeps the supernatural things in order.