Tonchinkan is a long-running tonkatsu restaurant in Tokyo that serves thick pork cutlets. The hirekatsu and roskatsu are thick, and the tonjiru and rice are refilled continuously. Even when a line forms, the turnover is fast, so you enter without a long wait, and you order before going up the stairs to be seated. The space is small, so if you go alone you may share a table with other customers.