Three-year-old Zhao Yufei is reborn back to the day his mother was killed. To save his mom Zhao Xiran, he finds his biological father He Jinchen and exposes stepmom Zhao Mengzhu's conspiracy. Relying on memories from his past life, he helps the He family resolve crises and see through traps, and even donates bone marrow to save his father at a life-and-death moment, uncovering the mystery of his own identity. Experiencing kidnapping, fire, and business wars together, the family of three finally smashes He Jinyan's power-grabbing plan and welcomes a reunion wedding. This is a heartwarming wealthy-family story of a cute baby being reborn to protect his family and counter-attack scumbags.