Qin Tian and Xiao Fan are childhood sweethearts. One day, Qin Tian was diagnosed with severe illness and decided to break up with Xiao Fan. Suddenly, a rain carried him to the future eight years later, when he had already married Xiao Fan and had a son. This rainy season trip gave Qin Tian an opportunity to choose the future.

秦天与萧凡是一对青梅竹马的恋人，某日秦天被诊断出患有重症，决定与萧凡分手。突然，一场雨将他带到了八年后的未来，此时他已经和萧凡结婚并育有一子。这段雨季之旅，让秦天有了一次选择未来的机会。