Christmas isn't a national holiday in Japan (<1% Christian), but it's a massive commercial and cultural event—reimagined through Japanese marketing genius.
"Kentucky for Christmas" (1974 campaign) turned fried chicken into the default Christmas dinner. ~3.6M Japanese order KFC Christmas buckets annually—reservations open months ahead. The "Party Barrel" (chicken, cake, champagne) is a cultural icon.
Strawberry shortcake (sponge, whipped cream, strawberries) is the mandatory dessert. Bakeries sell millions; convenience stores stock premium versions. Eating it on Dec 24–25 is near-universal.
Christmas Eve is Japan's "date night"—like Valentine's Day elsewhere. Couples book fancy restaurants months ahead; hotels sell out; jewelry ads peak. Singles feel pressure (hence "Kuri-bocchi" = "Christmas alone" memes).
Oshōgatsu (Jan 1–3) is the true family holiday: shrine visits (hatsumōde), osechi cuisine, otoshidama (money envelopes), nengajō cards. Christmas is the sparkly prelude.