Sushi Noike (すし乃池)

Yanaka 3-2-3, Taitō, Tokyo

http://goo.gl/maps/EhfAJxV56nr

Something like 40m down and across the street from #2383639, and thus also ~0.5km from post #2383636, with all 3 stores being clustered near Chiyoda line Sendagi station.