Shen Mengxi and Sun Yining, her childhood sweetheart, fell in love, but Sun Yining betrayed her. After she tried to take her own life, Yue Yunnan saved her. Years later, she returned, her identity utterly transformed. When she met Yue Yunnan again, those feelings of love surged back into her heart. Love and hatred intertwined. When the illusion ended, everything returned to the beginning. Yue Yunnan forgot everything, while only Dongfang Yuxue remembered their love. Though they could not stay together despite loving each other, it was both a regret and a journey on which each gained so much.