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INFO:Shinnosuke and his family attend a convention that dates back to the 20th century. Even though adults like Hiroshi and Misae are filled with fascination and excitement, children like Shinnosuke and Himawari are disinterested and concerned for their parents’ nostalgia. As this goes on, Ken and Chaco (the owners of the convention) discuss plans to "rid of the smell of the 21st century." This takes into effect during the night as Hiroshi and Misae suddenly sleep for the night.
