三个没有血缘关系、在原生家庭遭遇过不同伤痛的孩子，机缘巧合下凑在一起成为了兄妹。大哥凌霄、二哥贺子秋、妹妹李尖尖在两个爸爸李海潮和凌和平的抚养下相互扶持、共同成长。高中毕业后，两个哥哥回到了自己的原生家庭，一边是彼此认定相互珍惜的新家人，一边是无法选择但关系淡漠的亲生父母，他们在两个家庭中迷茫徘徊。九年后，哥哥们回到了新家人身边，三人终于团聚，但由于原生家庭造成的心理问题仍如影随形。面对生活中的各种困难，三个人选择齐心协力，在经历了一番磨难后，他们终于勇敢地走出了过去阴影，让父母直面了自己的问题，也让彼此成为了更好的自己。

（英语）Three kids without kinship and suffering from sorrow in their natal families become brothers and sisters by chance. The eldest brother, Ling Xiao, second brother, He Ziqiu, and youngest sister, Li Jianjian grew up together in the care of their two dads, Li Haichao and Ling Heping. After high school graduation, Ling Xiao and He Ziqiu return to their natal families. They waver back and forth between their natal family and new family. On one side are the new families they cherish. On the other are the birth parents with poor relationships. Nine years later, Ling Xiao and He Ziqiu come back to their new families and the three of them reunite. However, the mental trauma caused by natal families still haunts. Faced with various hardships in life, the three of them successfully get rid of the trauma through joint effort and endeavor. They make their parents realize the problems and become better ones after that.