Su Nian and Gu Chenzhou were once an enviable couple on campus, and their young love took root under the sycamore tree. However, when Gu Chenzhou went to study abroad, he appeared in front of Su Nian with the wealthy daughter Shen Qingwan when he returned. The pain of being betrayed came like a tide, and Su Nian was shocked to realize that the once sworn alliance was so vulnerable in the face of real interests. But when the truth gradually emerges, there is a secret hidden behind Gu Chenzhou's seemingly ruthless nature. Where will this entanglement of love and interests go? How should Su Nian find redemption in the broken relationship?