Our Resident Exorcist is a Manga/Manhwa/Manhua in english language, Action 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

Mild-mannered Sowol is a business owner like any other -- only his laundry service, Yeon, services demons! Housed in the strange, mixed-use Trinity Residential Complex where demons and humans live side-by-side, Yeon is frequented by deadly demons and annoying customers alike. With a new part-time hire to train and mysterious new tenants moving in, Sowol’s got more than his share of dirty laundry to handle. Multifunctional Exorcist Residential and Commercial Exorcist Residential Complex Exorcist