Song Yubai unexpectedly gains the ability to translate "baby talk" and can understand the crying and needs of infants. Relying on this skill, starting from the Gu Mansion, she solves practical problems for aristocratic children who were mistakenly thought to be "difficult to raise," "slapping down" old rules all the way, becoming the "Aunt Bai" eagerly hired by the nobles of the capital, and ultimately opening her own early childhood academy to spread scientific parenting concepts far and wide.