God-Level Killer: I Actually Killed Myself at the Beginning

** Is a top killer with special skills. He was recruited by the Space and Time Administration to carry out a top-secret mission. The content of the mission is to hunt down a mysterious person. After overcoming many difficulties, *** finally completed the mission. But when *** uncovered the mask of the mysterious man, he discovered that the man he killed looked exactly like himself! And the name of the person killed by *** was also called ***! The Space and Time Administration explained: "Yes, the person you killed is yourself! This is a multiverse world!" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.