Prologue:

Reborn five years after being betrayed and killed at the Pass of the Red River, former General Min Taehyung tries to live a peaceful, low-profile life in the Southern Province as the sickly clerk Kim Taehyung. His plans crumble when Crown Prince Jeon Jungkook personally arrives to audit missing military grain. During the inspection, Taehyung’s razor-sharp intellect and military posture accidentally draw the Prince’s intense scrutiny. Though Taehyung manages to hide his true identity behind his physical frailty, his unmatched knowledge of northern supply routes sparks Jungkook's suspicion, leading the Crown Prince to draft him into the imperial escort bound for the capital.