Even If I Am an Old Man, I Will Survive in the Doomsday

Asakura Haruka is an old man. We don't know the age. It tells the story of an old man surviving in a collapsed world where zombies roam, skeletons kill people, and monkeys control guns. Sometimes she laughs, sometimes she acts bad, sometimes she does whatever she wants, trying to make the beautiful girl look more lovely. Of course, just an old man can't survive in a collapsing world, so use the power of a con man and a possibly loyal maid. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.