Witch Chiffon is a Manga/Manhwa/Manhua in english language, Fantasy 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

The last witch in the world with the greatest spiritual power, Yuyan, who lives in seclusion in a cave, has been predicted to be killed by a man. Four men with their own secrets shatter her quiet life. When the lust for power brings forth destruction, disease and natural disasters, she must take on the mission of saving the world. The secrets that have been kept for a long time are revealed to the world, amidst deception, lies, and pain.