Kozue Izumi, our geezer protagonist isn't satisfied with how he lived his previous life.

So when the deity he meet after his death asks him to form a deal to save her world from extinction, he immediately snatches the chance and kicks his way through the unknown world.

Even if it means he no longer able to return to his human side anymore.

Please be aware that this fiction is heavily inspired by Japanese Light Novels and/or Animes.

Read on your own risk.