Living in the Last Days, Raising a Mermaid Boyfriend

[Two male protagonists + master and slave + doomsday survival + monster fighting and upgrade + golden finger] Morrie, an ordinary dead man, was pulled into the apocalyptic game. Morrie has no ambitions, his biggest wish is which hero can clear the game and save everyone. But God probably wants to find something to do for people like him, so that the storm can bring in a small fish. Morrie: Keep it as a pet. It's a living creature after all. Unexpectedly, one early morning, a handsome man with eight-pack abs appeared in the fish tank, wagging his tail and calling him: Master~