Shen Qingge, the daughter of a distinguished military family, marries Prince Xie Min as his secondary consort to repay a life-saving debt. Xie Min is already betrothed to someone else. He offers her wealth and security, but never his true affection. Yet Shen Qingge is clever and resilient. When the cold poison in his body flares up, she risks her life to protect him. Through political conspiracies and the Empress's schemes, she shields him from every storm. Xie Min eventually falls in love with her, but unable to abandon his old promise, he pushes her into an abyss. Only after she plunges into a bottomless icy pool, her heart completely broken, does she finally declare, "I no longer want the present or the next life you promised me," and resolutely divorces him. Only then does he lose his mind with regret, admit his mistakes, seek redemption, and finally offer her his sincere love. His long journey to win her back becomes a quest to repay every moment of tenderness he once denied her. In this lifetime, he betrayed her once, but ultimately vowed to stay by her side through every passing year and winter.