Lynne Lin, a modern elite, transmigrates to ancient times, becomes an unfavored concubine-born daughter. After a forced substitute marriage to merchant Miles Su, she revitalizes Su's Nook Eatery, defeats the Second Branch of Lin Clan and Matriarch Shi, fends off competing merchants, enters the imperial palace to reform the royal kitchen and root out corruption, proposes trade policies, is appointed Imperial Trade Inspector, and joins forces with Miles Su to expand trade routes across the realm.