Kang Ji-hoon, a web novel editor whose life was ordinary, died in an accident. However, instead of dying, he woke up in the body of Kang Min-jae, a young man in a parallel world where "Gates" to other dimensions have appeared, and "Hunters" with special powers are tasked with confronting the monsters within.

Trapped in a new identity, the mystery of his missing father and the pressure of becoming a Hunter, Ji-hoon must adapt to this dangerous world. Aided by a mysterious "system" inside his mind and his awakening telekinetic powers, he enters Hunter Academy as an underdog. With his editor's insight into the plot and characters, Ji-hoon must master his powers, uncover the conspiracy behind his transmigration, and survive in a world where every Gate holds threats—and secrets.