HELLCRAFT 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

Betrayed by the world, high school student Yeom Seung-gi escapes to his hiding place. Baphomet, the newly designated ruler of a new hell, chooses Seung-gi as his subordinate. As the creator of this hell, Baphomet selects Seung-gi and grants him the right to choose prisoners as compensation for his assistance in hell’s creation. Seung-gi joins forces with the demon in order to seek revenge, expecting it to be a win-win relationship. However… Suddenly, a death game begins— To survive, they must be sent to hell!