Starting my culinary adventure in Tokyo with junk food wasn't exactly what I had in mind in the first place, but it was 9 am, and none of the restaurants were opened. Not even Yoshinoya. And I was hungry as hell. Anyhow, I somehow compensated my regret by choosing the most Japanesey item on the menu.
Teriyaki McBurger Set
-> Say "BRAVO" to Japanese packaging! Who cares if it is junk food, the packaging is top-notch compared to McDonald's in other countries. The burger was great, the drink was great (I had a grape Qoo), and oh, the attendant was so polite, too! (compared to attendants at McDonald's at Sydney airport. Hands down, they're the worst in the world).