Hospital Of Hell 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

From INKR: A group of friends wanders into an abandoned hospital unaware of the horrors awaiting them inside. The hospital harbors terrifying creatures, and the group can only do so much to survive. A horrific suspense story following a group of friends in a fight to survive the Hospital of Hell 地狱医院