One month after their wedding, Ye Yunzhou heads to fight across the strait, promising to return in half a year. Yet thirty years pass before he comes back. Zhang Mingyue gives birth to twins alone and waits faithfully for half her life. Thirty years later, Ye Yunzhou returns as the richest man in Lingzhou and hires Zhang Mingyue as his personal assistant, unaware she is the wife and first love he has searched for endlessly. They stay close yet keep missing the chance to recognize each other. Their neighbor Zhao Chunju even steals her identity, sparking tangled conflicts over true love and identity.
