A story about eating, drinking, and killing monsters in the barbaric bestial world.

A child, Chang An, who was on his last legs embarked on a difficult road to survival with Zhe Yan, an inferior sub-beast who had lost an arm.

However, after he managed to grow to about six to seven years old by some miracle, he lost Zhe Yan — the one who he had always been inseparable from.

After he took his revenge, Chang An ascended a mountain to look for the mysterious Beishi knife art, and thus managed to practice a good skill.

In the same year, a foolish big guy called Hua Yi that had saved Chang An before had his whole family murdered by his Second Brother, and was thus forced to become a cold-blooded "Fugitive".

The two young men who once had innocent hearts gradually transformed, and grew up in this cruel beastman world……