Jeong Yoo-shin, 23 years old, was suddenly transported to another world.

In this world, let alone returning home, even survival was uncertain.

Black-haired humans were called Barbarians and treated as northern savages.

There was only one place where he could gain the strength to survive and find a way to return home, the Great Labyrinth.

"I must become stronger to survive. And I will definitely go back."

This is the story of a black-haired human's fierce struggle for survival in the labyrinth.