El destino de Ji Zong está destinado.

Ji Sihan, an illegitimate heir sent abroad to avoid family rivalry, meets Xia Yangyang—a struggling single mother supporting her troublemaker brother. When her son Xiaobao bumps into him abroad, Yangyang recognizes Sihan as her one-night stand from years ago. Fearing he'll notice Xiaobao's resemblance, she flees and gets injured. Witnessing her abandonment by her brother, Sihan (who was similarly discarded by his own brother) shelters the penniless pair. One fateful night together begins entangling their destinies.