Su Yan never believed in marriage. For her, intimacy is a risk, love is out of control, and clear boundaries and rational restraint are how she survives. She is used to sealing herself into a safe shell, always calm, always decent, and never allowing anyone to really get close. Sheng Xu is just the opposite. He is the youngest chief conductor of the Xijing Symphony Orchestra. He is cold, self-disciplined and as perfect as a precise movement. He devotes all his passion to music and controls every step of his life within the beat. He thinks that marriage is just a cooperation, an agreement, and when the time limit is up, they both leave. There is no need to be emotional, let alone fall in love. So, they signed an agreement to get married when they were most awake - not to cross the line, not to be tempted, not to interfere in each other's lives, and to be the most suitable "husband and wife partner". The days after marriage were as calm as a pool of water. She appeared on time and left on time, always distant and restrained, and he thought he could be absolutely rational. But it was Sheng Xu who was the first to lose balance. When she said "let's stop here", he lost control for the first time; when she turned around, his restraint completely collapsed. He began to wait for her to come home late at night, flustered when she was silent, unable to breathe when she was alienated, and even unable to concentrate when giving instructions because her shadow was all in his mind. From the fake show to the real fall, he finally understood that this marriage was never an agreement, but his long-planned heartbeat, and a love that he could never leave. She thought it was just cooperation, but he had already handed her over.
