Li Qinwu, a player from Blue Star, accidentally transmigrates into a goblin infant who can only stay alive by eating grass. In a monster tribe ruled by the law of the jungle, he relies on his Mount & Blade system and real-world labor to gradually seize control of the tribe, transforming a bunch of monsters who only know how to fight over food into a disciplined army. To overcome the shortage of iron equipment, he dons armor, wields a crossbow, and leads his followers on an expedition against human villages, embarking on a journey of rising to power in an unfamiliar otherworld.