The God of Death 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

Kang Moo Han is a cheap loan shark who suddenly died in a car accident. A few moments after his death, a mysterious black hole suddenly appeared. And now his goal is to become the ruler of the underworld. In order for him to achieve his objective, he has to complete all the quests and challenge the other kings of the underworld, who are also eagerly waiting for an opportunity… Will he be able to achieve his goal and become the god of death?