Xu Mi Qian Yuan Juan 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

The young Taoist monk Cang Lan has descended from the mountain to take his new post at Ruyi Temple. The owner of the Temple, Yan Yeyu, is a devil who has been sealed at Ruyi, and now spends his days sleeping from laziness brought on by his past failures. Cang Lan's arrival results in the re-opening of the Temple-- In the midst of fulfilling various wishes, Yan Yeyu's burden of past sins is also starting to peel away...