A.
A ticket that allows one entry from 13 April to 26 April 2025. Prices are 4,000 yen for adults, 2,200 yen for juniors (12 to 17 years old), and 1,000 yen for children (4 to 11 years old).
https://ticket.expo2025.or.jp/en/faq/
https://ticket.expo2025.or.jp/en/faq/