Dealing With Demons is a Manga/Manhwa/Manhua in english language, Drama 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

Staying alive is a new form of entertainment. When Dokyung, disillusioned by the harshness of life, finally resolves to call it quits, a bored demon, Hwamyung, appears before her with a particular offer. Will Dokyung, having entered into a contract with the Demon of Disillusionment, be able to flip her disastrous life upside down?