Convenience stores are the national snack shelf
A Japanese snack run often starts at 7-Eleven, FamilyMart, or Lawson, not a candy boutique. You leave with a KitKat, a cream pan, and an onigiri because the store is built for eating on the move. Limited flavors are not a marketing afterthought; they are the reason people check the shelf twice a week.
Omiyage is how candy travels
Tokyo Banana, Shiroi Koibito, and prefectural KitKat boxes exist because Japanese travel culture demands a packaged gift for the office. That is why so many famous sweets are individually wrapped, shelf-stable, and a little too pretty for a lunchbox. If you only buy one thing at Haneda or Shin-Osaka, make it a regional box, not a generic chocolate bar.
Dagashi versus depachika
There are two snack economies. Dagashi-ya culture is Umaibo puffs and sour candy for pocket change. Depachika — the department-store food basement — is where butter cake, fruit sandwiches, and seasonal wagashi sit under lights. Both count. One is nostalgia; the other is the gift you are expected to bring home.
How people actually snack
Afternoon sweets arrive with green tea or a canned coffee from a kiosk. Night snacks lean savory: senbei, onigiri, and fried bits from the konbini warmer. Seasonal pressure is real. Sakura in spring, sweet potato in autumn, strawberry in winter — if a flavor is off-calendar, it feels wrong.