Hiroshi's client challenges Misae and Hiroshi to win a match for a contract. As Misae gets injured, Shin-chan plays and wins the match. Shin-chan and his friends go out together for a long picnic. As time passes, everyone returns home and leaves Masao all alone. Shin-chan talks to Keiko's baby and sings songs for it. Later, Keiko and Shin-chan go to a nearby store and find Misae there.