"Any boy who can find someone like Bai Yan will definitely be very happy." Ten years ago, Hu Yuan and a group of teachers in his class joked about Zhang Baifeng, who had just graduated; ten years later, Zhang Baifeng has become the person he cares about most in the school besides his own son. "Hu Yuan, everything today has nothing to do with Teacher Hu and Zhang Baiteng ten years ago. I only know that I am your colleague and your girlfriend now." For him, this was the first conflict he encountered in his forties, and also the sweetest one. For her, this is the biggest gift when she is about to stand up. She uses the greatest courage to exchange for a more satisfying love. "For me, ten years is too short and a lifetime is too long. Meeting you at this moment is just the right time."