Cute toddler Mumu possesses the special ability to understand animal speech, and is brought to the warlord's mansion by human traffickers. Under the staunch protection of warlord's wife Zhao Min, she stays at the Lu family. With the hints of animals such as parrots, white tigers, and cats, Mumu successively sees through the conspiracies of multiple enemies, helping the Lu family resolve wave after wave of crises. Kind-hearted Mumu sympathizes with the poor commoners, inspiring the Lu family to open charitable halls and textile mills to shelter and rescue grassroots people. The Lu family members also grow increasingly harmonious in getting along, and Mumu completely becomes the Lu family's deeply adored little daughter.