In a modern first-tier city, single mother Su Wan raises her two-year-old son An An alone. Faced with the dilemma of her child crying frequently but unable to find out the cause, she unexpectedly awakens the "child's voice" ability when she collapses late at night - she can clearly hear An An's needs and grievances. Relying on this ability, Su Wan finally understood An An's uneasiness, solved the feeding and sleeping problems, and gradually became more comfortable raising the baby. In order to give An An a better environment for his growth, Su Wan sent him to "Xingyuan Kindergarten" and met the gentle and considerate director Gu Yu. Gu Yu noticed Su Wan's difficulties and hard work, and often helped her. The two developed a mutual affection for each other during kindergarten activities and parenting exchanges. At this time, An An's biological father suddenly appeared and used financial advantages to demand custody rights, constantly harassing Su Wan's life. With the support of Gu Yu, Su Wan relied on her ability to prove her deep care for An An, and finally won custody. She formed a happy and loving family with Gu Yu and An An, and also completed her self-growth from vulnerability to independence.
