This is a service that displays the purchase history of tickets purchased by customers on this site. Even if you "hand over the ticket" after purchasing the ticket, you will still be the one who purchased the ticket, so it will continue to be displayed in the "Purchase History".
However, tickets added using "Add Ticket Registration" or tickets received through "Ticket Transfer" are not tickets purchased on this site and will not be displayed in your purchase history.

https://ticket.expo2025.or.jp/en/faq/