The list with Aoi Kisaragi's name.
Yu-Gi-Oh! GX episode 168: "The Graduation Duels Begin! Neos Versus Horus the Black Flame Dragon"
Their name appeared on a list of names of people at KaibaCorp. Each name disappeared after Trueman sent them to the World of Darkness. Aoi was the second last to disappear from the list, leaving only Kazuhiko Mashirito and Seto Kaiba.