Misae gives Shin-chan a ball instead of a coin on New Year's day. Later, as Misae breaks the ball, she gives him a real coin. Shin-chan goes shopping but doesn't spend his New Year coin. He saves the coin and admires it even in his sleep. Shin-chan’s grandparents arrive for a visit without warning determined to enjoy their grandson, even if it makes Misae’s life more difficult. Shin-chan and his grandfather agree to help Misae in cleaning but add to the mess.