Kagai (traditional entertainment district) has inherited various Japanese culture. Kagai of Hokkaido and Tohoku district escaped the air raid in World War II. So these Kagai districts still have historical buildings. Purpose of this study is to gasp the outlooks of Kagai in Hokkaido and Tohoku district, and to analize the transition of building use in Nanokamachi-Kagai and Imamachi-Kagai.