The excellent Y2000 bento lunch served in an elegant private room at Kita Oji feels like one of Tokyo's very affordable luxuries. Yes, it's all individual rooms for parties of 2-70, furnished with hanging scrolls, flower arrangements and hori-kotatsu seating (tatami mats with a hole in the floor around the table, for more comfortable seating). Dinnertime specialties include fugu and black Angus wagyu beef. Lunch is priced Y1980-7140, dinner from Y8500.