A koryoriya ("little restaurant") is a cozy izakaya that specializes in Japanese home-style cuisine and is usually run by just one or two people. Sometimes, a row of large platters on the counter contain various dishes cooked in advance that you can choose from. The contents of the platters vary from day to day, so it's a good idea to ask what's on offer that day. Prices are often not written, so it's advisable to check those as well.
This kind of restaurant is perfect when you want to enjoy the authentic taste of Japanese home cooking.