One unassuming evening, a mysterious woman kills Tomokui Kanata. However, that is not the end of him, as he reincarnates in another world—though only as a mere goblin named Goburou. But in just a few days, Goburou's body matures and he is ready to begin hunting with another newborn goblin, Gobukichi. While they hunt, Goburou realizes that he has retained the extremely rare ability called Absorption from his previous life that allows him to gain various traits of anything he eats. Although it is rare for goblins to evolve, Goburou's and Gobukichi's efforts soon pay off as the two evolve into so-called hobgoblins. Their prowess impresses the other goblins, and Goburou becomes the leader of their pack and begins training his kind. As Goburou gains increasingly powerful abilities, evolves into even more superior species, and meets new significant allies, there is nothing that can stop his upcoming reign.