In a world where humanity lives in suspended space, children undergo a fishing test when they come of age. Those with immaculate talents have the possibility of becoming great fishing masters.

In the endless sea, every life is imbued with a sacred mission. There are fish that can fly, turtles that have absorbed the worldly essence, and whales that can devour the heaven and earth… There are also countless fishers.

Fishing is an art.

There is an ancient saying: If you can’t fish, you might as well be bait.

With the rising tide of steam power and machinery, who can come close to being a Beyonder? Shrouded in the fog of history and darkness, who or what is the lurking evil that murmurs into our ears?

Waking up to be faced with a string of mysteries, Zhou Mingrui finds himself reincarnated as Klein Moretti in an alternate Victorian era world where he sees a world filled with machinery, cannons, dreadnoughts, airships, difference machines, as well as Potions, Divination, Hexes, Tarot Cards, Sealed Artifacts…

The Light continues to shine but mystery has never gone far. Follow Klein as he finds himself entangled with the Churches of the world—both orthodox and unorthodox—while he slowly develops newfound powers thanks to the Beyonder potions.

Like the corresponding tarot card, The Fool, which is numbered 0—a number of unlimited potential—this is the legend of “The Fool”.