Matsuzaka takes a leave and goes to a departmental store to spend her day, but fails to enjoy due to Shin-chan and his mother. Misae brings Nene-chan to her place. When Nene-chan's mother returns, Shin-chan troubles her. She loses her temper and shouts. Misae forgets the house key. Shin-chan and Misae spend an entire day outside. In the night, when Hiroshi returns, they feel relieved.