Misae's parents and Hiroshi's parents come to meet the baby. But Ginnosuke and Yoshiji don't agree with each other and have an argument. Yoshiji and Ginnosuke take Shin-chan to the National museum. Later, Ginnosuke and Shin-chan confess that Yoshiji is strict but a nice man. Shin-chan pretends to be a salaried man and goes to Hiroshi's office. And when Shin-chan reaches home late, Misae scolds him.