After a separation of seventeen years, Yan Jin returned with the help of a system in the appearance of an eighteen-year-old, only to find that her three separated children had already grown up, each bearing pasts they were unwilling to mention. To make up for the missing companionship, she became a transfer student, walked into her children's lives, and joined hands with her awakened husband Yu Yan to explore the truth of a scattered family. From full guard to relying on each other, the family of five rebuilt trust in daily lives intertwined with laughter and tears. And what Yan Jin wanted her children to believe most was always that sentence: Babies, I really am your real mother!