Kogoro Katsu - Siam Square is a Japanese restaurant in Siam Square, Bangkok, serving tonkatsu and katsu sets. Pork loin, pork tenderloin and seafood katsu come with pear sauce, and rice, miso soup and cabbage are refilled. Food arrives without a long wait and the rice is cooked pot by pot, while the dining room is on the second floor and reached by stairs. The tonkatsu and the service are good, but prices are on the high side.