Bagels seem to be a thing in Japan. The last time I tried them there was 2002; no good memories remain.

In addition to random pop-ups and vendors throughout the big cities, I walked by "NEW YORK CLUB THE BAGEL CAFE and BEER STAND" in Tokyo's Akasaka neighborhood. (why beer?) However, given that local bakeries and patisseries do so many other carbs well, I didn't bother giving them a whirl. Their take-out menu also screams SPERAD instead of SPREAD (as in, jams/marmalades), but that's a horse of a different color.