Chai Shu had a dream. In the dream, the doctor said that he suffered from delusional disorder and could not distinguish between reality and fantasy. In the dream world, Jiang Wan was already dead. Which one is the real world? Chai Shu fell into deep contemplation (with a serious face), silent and introverted Shou, and Zhong Er, a lively chatterer, "Do you believe there is another world? The two worlds seem to be the same but they are also different. We have different life trajectories. We may not have the chance to meet in our lifetime, but fortunately I know your existence, let me try to find you in another world."