An ordinary profession creates the world's strongest

Nanyun Hajime, the "bullied child," is summoned to another world along with his classmates. While his classmates gradually display special abilities oriented towards combat, Hajime possesses only the ordinary ability of a refiner. Furthermore, being the weakest in this other world, he is maliciously pushed into a deep ravine in the maze by a classmate—!?
In the abyss of despair with no way to escape, Hajime met Vampire Moon as if it was destined, and found the path to become the strongest as a refiner.
"I protect Yue, and Yue protects me. That way, I will be the strongest. I will sweep away everything and surpass the entire world."
A boy who has fallen into the abyss and a vampire who lives in seclusion in the deepest part of the world, the two have joined forces to create the "strongest" fantasy story in another world, and the prologue has officially begun!