Evelyn, a modern food delivery worker, catches her boyfriend cheating and storms off, only to be whisked by her glowing jade pendant into the imperial palace of the Everlasting Kingdom. Using pizza, she cures Emperor Elliot's eating disorder and avoids danger. Discovering her delivery box preserves items across time, she trades ancient goods for cash to help her mother. Traveling between eras, she aids Elliot in palace and battlefield crises and sparks a romance that spans time itself.