■Flow of the Conversation:

- Randoseru (Japanese school backpack) imported from the Netherlands / Originally like a "Furoshiki" cloth bag / Prototype of the modern box-shaped randoseru created when Emperor Taisho entered Gakushuin University, donated by Hirobumi Ito / Nationwide spread around 1955 / The number of pages in textbooks for randoseru has also increased / About double for elementary school students / About 1.5 times for junior high students / Modern elementary school randoseru are colorful / In 2001, Aeon introduced 24 colors / Popular colors for boys are black, navy, and blue / For girls, purple, pink, and light blue are popular / The purchase price of randoseru is rising annually / Increase in education expenses per child / Often purchased by grandparents, not parents / Seiban expanding randoseru overseas / Initially for overseas children / Actually sold for adults in Germany / Randoseru features: "durable and hard to break," "resistant to rain," "available in a variety of colors"

■【Seiban Official】Randoseru Selection Documentary:

https://www.youtube.com/watch?v=r1Bic3Go2dY

■Research Data:

- Survey on Randoseru Purchases

https://www.randoseru.gr.jp/graph/

- Randoseru Market Remains Strong Despite Declining Birthrate - Early Purchasing due to "Randoseru Activities," Rising Average Prices

https://www.nli-research.co.jp/report/detail/id=74083?site=nli

- Current Situation and Issues in Textbook Publishing (Fiscal Year 2023)

https://www.textbook.or.jp/publications/data/23tb_issue.pdf

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