Five years ago, because of a misunderstanding that his girlfriend Pei Shu was entangled with her first love, Lu Zheng's sense of inferiority drove him to use cold violence to force Pei Shu away. He secretly took away his full-month-old son Lu Yu and hid in a small town, raising the child alone by running a breakfast stand. Five years later, Pei Shu unexpectedly appeared as a kindergarten investor and proposed competing for custody. As the two negotiated custody matters through community civil mediation, the misunderstanding of that year was resolved. Finally, matched up by Lu Yu who longed for maternal love, past barriers gradually dissolved. Lu Zheng let go of his inferiority complex and took the initiative to seek reconciliation, and Pei Shu chose to move in to live together, making the family of three whole again.