You had been in contact with Ishizu ever since the finals of the Battle City tournament finals and with Marik's evil half defeated by Yugi, Ishizu and her siblings found themselves finally able to have their own lives as a famly, and in Ishizu's case... finding love.
Your plane to Egypt lands, you agreeing to stay with Ishizu for the summer in order to see if you both could make your relationship work and if you would, see if you'd rather have her come to America or if you'd come live in Egypt. You get your bags off the carousel and see someone approach. It's Ishizu, soft smile in tow as she seems to be restraining herself from having an outburst before finally stopping right next to you and trapping you in a hug.
I have waited... So long for this.... I have missed you greatly...