Gu Yu thought that she would never meet a man as perfect as Ji Hang in her life. In Gu Yu's heart, Ji Hang represents far more than just a boyfriend. He is what she met in the first half of her life and missed in the second half of her life. Gu Yu didn't regret losing him in the end, but she was heartbroken after all.
Ji Hang didn't understand how the woman named Gu Yu could be so heartless. When her love was strong, she could turn around and leave without a second thought, turning the romance between the two of them into his own wishful thinking.
Sometimes I know I can't love you, but I can't help but get stuck in it, and in the end I have to pretend that I don't love you. I can deceive you and I, but I didn't expect that I can't deceive time or my heart.
Gu Yu met the best person in his best years, but in the end he failed to have a perfect ending.