When you were young and frivolous, you fell in love with that person. You thought that person was the love of your life. You thought that without him, you would never be happy in your life. Years later, you meet another person, and he loves you and seeps into life through life. What choice will you make when one day they appear in your life at the same time? Five years ago or even longer, Sun Shiying loved that boy very much. Five years later, a man loved Sun Shiying with his life. When Su Mohan took off Shiying's guard little by little, that boy suddenly returned five years ago. How would Shiying choose? Is Shiying's choice right or wrong? How far is Shiying from happiness?