Li Chengyuan's wife, Su Wanqing, died unexpectedly in a car accident. While he was still full of regret for coldly ignoring his wife for many years, he was reborn back to ten years ago when they first met again. Armed with memories of his past life, he devoted everything to making up for it and protecting her, helping her solve all the troubles around her. He transformed from a cold boss into a clumsy, wife-pampering husband. However, his rebirth triggered a butterfly effect, and eradicating his arch-enemy early made Su Wanqing a targeted threat once again. With his past life memories failing and the crisis escalating, Li Chengyuan must stand shoulder to shoulder with his beloved in a completely unknown future to uncover a heaven-shaking secret, vowing to protect the future to the death.