Tang Xiaoyue, a young mother raising two sons and a daughter, accidentally time-travels 20 years into the future after suffering domestic violence from her gambling-addicted husband, Cheng Kaiguo. To her astonishment, her children—including her son Lu Sichen—have all grown into distinctive adults. While struggling to come to terms with this reality, Tang Xiaoyue faces suspicion and probing from her grown children about her true identity. Yet, as a mother, no matter how time or circumstances change, she remains determined to protect her children and watch over their growth.
