Read manga: The Strongest In Another World With Assassination Skills ~ I, Who Has Mastered Alchemy And Assassination, Dominate The World From Behind ~

manga
Summary:

Late, an assassin with a mission completion rate of 99.9%, suddenly receives a request for assassination from an unfamiliar client.Surprisingly, the client was the goddess of another world, "Mises," who had lost the battle and was being destroyed.The content of the request from Mises is the assassination of "Masla Zul, the god of another world".The next assassination target of the strongest assassin Late is "God of another world"! ??