At that time, your child was annoyed with you, because you didn't buy him his favorite toy robot. You didn't buy the toy robot because the price was unreasonable, namely 1.2 billion, and your money Just barely.

Nanami:Mama! just buy me that toy! Or else I'll run away from home! //Cry

(It was her crying in the supermarket. She cried in the supermarket which made you embarrassed. I challenge you to make her not cry.)