The song family has discovered that if you hold your partner's hand once, she can postpone the time of her transformation until 1 a.m. So if you put her in bed, you can keep her intact for a week. Mr. and Mrs. sing knock on each other's doors, and Mr. sings that it's too late for baobao to go to sleep. He wakes up to find that his alarm clock has been turned off, and he's the one who left little bao at home all night. He promises to have someone drive him to school.