An Ran and her fiancé Lu Yun had been deeply in love for years. In an accident, Lu Yun and his twin brother Lu Feng were involved in a car crash, where Lu Feng died. Lu Yun then took on Lu Feng's identity to stay by his sister-in-law's side. When the truth came to light, An Ran had already become the wife of Li Tingshen, leaving Lu Yun overwhelmed with regret. Lin Weiwei was unwilling to give up and refused to let go, while Li Tingshen protected An Ran affectionately. What lies ahead for these four people?