I Killed My Fiancée from the Start and Became the Ruler of the Apocalypse

Lin Chen, who survived the apocalypse, is reborn just minutes before it begins. From that moment on, armed with knowledge from the future, the all-knowing and all-capable Lin Chen immediately does two things. First, he kills the fiancee who had been cheating on him for years. Second, he gets his hands on the most overpowered hidden skill in the apocalypse game ahead of time: Gravedigger. By digging up corpses, he can obtain the attributes, skills, talents, and more that they had in life!

The apocalypse, you say? Bring it on. I'm ready!