Gobrou is reincarnated as a goblin and spends his days fighting in order to survive. One day, he saw a female elf attacked by humans. He saved her and listened to her story. Turns out, a war between humans and elves have begun in this forest where he was born and raised. This is his chance to rise in this world all at once! Gobrou, who has evolved further, is now leading the monster mercenary corps and welcoming the overwhelming human army! The long-awaited third volume of a monster fantasy manga!