Lin Jie, a transmigrator, is the owner of a bookstore in another world.

He’s kind and warm-hearted, often recommending healing books to customers who are going through a tough time. From time to time, he secretly promotes his own work too.

Over time, these customers begin to respect him greatly, some even frequently bringing local specialties to repay his favor. They often seek his professional opinion when it comes to selecting books, and share their experiences with this ordinary bookstore owner to people around them.

They respectfully and intimately refer to him using names such as the “Demon God’s Lackey”, “Propagator of the Flesh and Blood Gospel”, “ ‘Corpse Devouring Sect’s Rites and Customs’ Author” and “Shepherd of the Stars”.

“???”

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”.