Tianna, a devoted court apothecary, lives to save lives through her work. Just as her hard work finally earns her a promotion, a mysterious mark appears on her body—one that identifies her as the "fated bride" of the elegant and powerful Emperor Safir! As the imperial court launches a massive search for this destined partner, Tianna, determined to keep working as an apothecary, decides to hide her true identity. But fate has other plans—she’s suddenly assigned as the emperor’s exclusive apothecary, putting her closer to discovery than ever before…!