An ancient bronze mirror connects two worlds five centuries apart. On a full-moon night, modern girl Zhang Yuyan is transported to the deep palace during the Chenghua era of the Ming dynasty, where she meets Zhu Youtang, a six-year-old boy struggling to survive amid deadly schemes, who will one day become emperor. From then on, she becomes the only light in his bleak childhood, bringing him food, medicine, knowledge, and companionship across time. Time races ahead in the Ming dynasty, and the little boy grows into a steady, composed crown prince, while Zhang Yuyan’s life in the modern world goes on. Her family goes from shocked to becoming her strongest source of support. As Consort Wan closes in at every turn, court intrigues swirl, and the mirror’s rules of time travel remain unpredictable, the grown Zhu Youtang and Zhang Yuyan find themselves drawn to each other, and love sparks between them. Their love across time is the kind anyone would envy *^O^* All the heartbreaking regrets left by history books finally get perfect endings.