Shin-chan interrupts Matsuzaka and her boyfriend's meeting. So, Matsuzaka takes Shin-chan along with her and returns home.
Hiroshi trains Shin-chan for a sumo wrestling match held for the kids. Shin-chan drops the washed clothes rack on the ground, for which Hiroshi gets a beating.
Shin-chan gets into a competition with a strong trained child wrestler, Tarau and wins the match.
La señorita Matsuzaka sale con un tipo raro y acaba deprimida. Shin chan entrena con Hiroshi para el torneo de sumo. En el torneo de sumo, Shin chan se hace pipí y gana.
