To reach this serene Japanese restaurant, you must first pass through the tea shop Ito En downstairs, which makes it seem like Kai is a hidden gem of some sort—and actually, it is. The atmosphere is hushed and the décor sleek and minimalist, right down to the single flower on each table. Kai specializes in kaiseki, a Japanese multicourse seasonal tasting menu, for $85, while a prix fixe omakase (chef’s choice) menu is a more wallet-busting $150-$200 per person, as is the Kagoshima Wagyu steak ($16 per ounce with a five-ounce minimum).

Kai Information:

• Japanese menu. Lunch, dinner. Closed Sunday-Monday.