Beginning: I Show My Cards, This Is No Ordinary Bone

He thought this was a normal old world, but by chance he saw a newspaper, and the world showed its cards to him! "It's a showdown, my world is dangerous!" Well, the protagonist has a showdown too! "It's a showdown. I really don't have a golden finger. Send me home quickly!" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.