I am very sorry for failing to check the comments. Seikatei is near the university co-op of Hokkaido University. The address is Kita 7-Jo ?, Nishi 8, Chuo-ku, Sapporo City. From the southern sidewalk of Kita 7-jo street, go down the stairs to the small park and Seikatei can be found in the residential area. Please find it and go inside the house! Thank you very much for attention and your comment!