Ichi-u

Ichi-u sits in Nihonbashihongokucho, a two-minute walk from Kanda Station, three from Shin-Nihombashi, and five from Mitsukoshimae. The restaurant is built around an L-shaped counter and open kitchen, designed to feel like a single private house — which is what the name Ichi-u means.

Chef Koichi Hamano trained for six years at Akasaka Kikunoi and Ginza Koju, two well-known Japanese restaurants in Tokyo, before spending roughly seven years studying sushi at Sushi Sensou in Kumamoto. He opened Ichi-u in February 2022. The menu is omakase-style, moving between seasonal Japanese dishes and Edomae sushi, paired with sake and other drinks sourced from across Japan.

Seating is counter-only, which puts diners close to the preparation and lets them watch the chef's work directly. The restaurant offers an English-language menu, and reservations run through an online booking platform linked from the official site. Price tier is upscale, in line with counter-based omakase dining in central Tokyo.

Hours are not listed publicly; confirming the exact seating time is worth doing when booking, since omakase counters typically run fixed service slots rather than open walk-in hours.