A.
A ticket that allows one entry from 13 April to 18 July 2025. Prices are 5,000 yen for adults, 3,000 yen for juniors (12 to 17 years old), and 1,200 yen for children (4 to 11 years old).
https://ticket.expo2025.or.jp/en/faq/
https://ticket.expo2025.or.jp/en/faq/