Shin-chan and his group create a box house and decorate it with flowers, animal pictures, and Shin-chan's action robot for a competition.
Misae, Shin-chan, and Hiroshi segregate the unwanted things present in the house that can be sold in a flea market and find Shin-chan's baby toys.
Misae, Keiko, and Shin-chan put up a stall to sell their things. Shin-chan barters his old toys for better ones.
Shin chan y sus amigos montan sus propios palanquines en la guardería. El de Shin chan es el más raro. Los Nohara participan en un mercado. Sin embargo, Misae y Hiroshi se pelean por qué vender. Montan una parada en el mercado con Keiko.
