Yojiro made some money and decided to invite his aunt and uncle, who had taken care of his sister for many years, to join a luxury tour of the travel agency to Hawaii. The news that the two elders were going abroad soon spread all over Chaiyou! But fate always played a trick on Yojiro, and the agent who arranged his itinerary absconded with money, making their good dreams come to nothing. In order to avoid ridicule, they decided to return home in the dark at night, and then hide from it for three or five days before showing up.