After being transported to the fantasy kingdom of Aethelgard, Mark is framed by his relatives and sent to the frontier as a conscript. There, he awakens the Talent Replicator System, allowing him to copy and master others' abilities. Rising through military trials, he seals a monstrous rift, exposes a treasonous plot, and clears his name. With help from swordswoman Millie and the Imperial Inspectorate, Mark heads to the capital aboard the Dragonspine to face his destiny.