After being brutally murdered, Tomokui Kanata awakens in the body of a tiny green baby. He now has to begin a new life as a goblin in a brutal world, but fortunately, he has retained his special ability from his previous life.

While Gobrou organises and trains the goblins of his generation, the generation that fathered them returns from their raiding; when he sees that they've captured a band of human women, he challenges the existing authority for control of their fates.

Gobe brings a small injured creature to Gobrou; Gobrou gets in trouble with the village women.

A band of elves calls upon Gobrou to help defend the forest from invading humans. However, the arrogance of the elves makes them difficult to negotiate with. Terrified kobolds run to the goblins out of desperation, bringing trouble right to their door.

Gobrou interferes with a human plot to steal the daughter of the elven chieftain. As they continue to prepare for conflict to ensue in the woods, the villagers keep growing in strength and evolving into new forms.

The human army finally advances on the Kudel Woods, and the Parabellum Mercenary company goes to meet them. Their training, power, and most importantly tactics are put to the test against organized forces of humans.