Shin-chan polishes Hiroshi's and Misae's shoes to earn pocket money but ruins them. Later, He applies polish on Misae's and his face. Shin-chan opens a shoe polish shop and polishes Ryuko's shoes. Later, Shin-chan hands over the shop to Ryuko and goes away. Shin-chan finds Kazama's diary with many flower circles drawn on it. Later, he gets to know that it is normal to have an upset stomach.