When Piro and Largo fly to Tokyo on a whim, they find themselves stuck in a massive city with no money to return home again. This quickly leads to their new lives as they work their way through the same city, which each sees as completely different.
For Piro, Tokyo is a city filled with manga, school girls, enjoyable life experiences and of course, maybe he can find a girl or two that might just like him. For Largo, Tokyo is packed with zombie hordes, godzilla roaming the streets, magical girls, ninjas and lots of beer.