Jocelyn Quinn, Olympic champion, transmigrates into a lesser daughter. Forced into the Imperial Concubine Selection, she's bound to "The Ultimate Damsel System" to return to the modern world. Publicly fragile, privately strong, her behavior catches Emperor Theron's eye. He sees through her disguise. Facing plots from a noble consort and The Empress, Jocelyn overcomes crises. She joins forces with The Emperor to eliminate factions, becoming a legendary imperial couple.