There's only one menu for lunch - Deep-fried fish (horse mackerel) combo. Hot and crunchy outside and so fluffy inside. Definitely worth a shot. It gets pretty crowded during lunch time so make sure to get there 10-20 minutes before they are open. You'd still end up waiting in a line for a while, probably.
My rating: 4.5
Website | Tabelog | 03-5524-1280
Address: 3-6-1 Kyobashi, Chuo-ku, Tokyo
Access: 1 minutes from Kyobashi station
Budget: 1,300 JPY (Lunch), 6,000 JPY or more (Dinner)
Open: 11:30 until out of ingredients, 17:00-21:00 (last call)