10-year unknown actor Baek Seojun was almost killed by a ferocious monster...not in a filming set, but in real life? On the first day of filming a new drama, Seojun finds himself waking up to a strange world with flying creatures, talking trees and sword-wielding children. CG?! Unfortunately not! It was the world of 'Lukia's Cadence', a novel written by the same writer responsible for the drama he was about to film. He had heard of transmigrators or reincarnation in games they’ve played or novels they’ve read, but why was he so unlucky to enter a book he had never even touched? Now with the identity of a side character’s young son, Seojun must navigate his way inside a novel he had never read.