Lee Gong-jin, a young tailor, helps the Queen with her dress and both fall in love with each other. However, his success catches the ire of Jo Dol-seok, the royal tailor, who vows retribution.
Upon the announcement of the king's death in Goguryeo, a fierce battle ensues among tribes. Queen Woo, who immediately becomes the target of princes and five tribes vying for the throne, struggles to crown a new king within 24 hours. Will Queen Woo be able to transcend the constraints of gender and era to carve out her own destiny?