fancy cured-meat purveyors and extremely hearty ramen dispensatories, a quiet little house with a fading noren waits. With bamboo. And the sign says 'sushi', but there's no menu.
After taking all these pictures, Suzuki san was visibly but politely thinking I was a nut, so I went the full monty by asking about dinner. And then he was visibly uncomfortable talking about the price, but suffice to say that you can have this quality for lunch at a quarter the price of a (more elaborate) dinner. This is a bit of a hidden gem, and neatly inhabits the space of sushi places I want to find - not at the crazy top end of price, but with the occasional top-end quality item surprising you.
Simple, humble, and very, very good.