After the college entrance examination, Yu Jinchen was diagnosed with lymphoma. In order not to drag down the school belle Jiang Muxue, she publicly threw money to cut off the relationship and went abroad alone for chemotherapy. Ten years later, when he returned to China for a review, the attending doctor turned out to be Jiang Muxue, who was already an expert in lymphoma. It turned out that after Jiang Muxue learned the truth, she decided to study medicine just to be able to protect him. Over ten years of misunderstanding and estrangement, the two went in both directions on the road to fighting cancer, supporting each other, untying the knots in the past, breaking through the obstacles of reality, and finally reunited and stayed together for a lifetime, performing a deeply affectionate two-way redemption.