To save her family, Su Wan was sent to the Gu family of Jiangnan like a fine porcelain doll, becoming the "good-luck bride" of Gu Huaichen, the frail eldest son. Beneath her red veil, she heard whispers about her humble background. On her wedding night, she faced a husband too ill to complete the ceremony, and a pair of calm, penetrating eyes belonging to the man standing in for his elder brother.
Gu Huaijin, her "younger brother-in-law" in name, was the true power behind the Gu family. His fingertips were icy, yet his quiet "Sister-in-law" burned in her heart like wildfire. From then on, she was trapped in a gilded cage. By day, she was the gentle, virtuous eldest daughter-in-law. By night, she and that dangerous man were caught in an endless tug-of-war between morality and desire.
When the mystery of her birth was unveiled, when the arrival of twins sparked a shocking scandal, when an old enemy returned with fire in tow... the glass cage that held her prisoner finally began to crack amid the flames.
Glass shatters easily, but the locks on the heart are hard to open. This is a forbidden poem of desire, struggle, and redemption, set against the raging current of fate.