Kokoromi

Kokoromi is a Japanese sake bar in the city of Himeji, Hyogo. They have about 300 different types of sake in stock.
Starting with the local Nada-no-sake, Kokoromi has sake from all over Japan. You can enjoy a glass of sake from ¥100, and try out as many as you please. If you find one you like, you can buy a bottle of it and take it home with you.
They also serve foods that go well with sake, such as cold tofu and karasumi (salted dry roe). Each of these dishes start at ¥100, too.
(photo credit: @paparin1000)