CREATE TABLE table_64295 ("Japanese Title" TEXT, "Romaji Title" TEXT, "TV Station" TEXT, "Episodes" FLOAT, "Average Ratings" TEXT)

Which episodes has the lowest average ratings of 8.7%?
SELECT MIN("Episodes") FROM table_64295 WHERE "Average Ratings" = '8.7%'
SELECT MIN("Episodes") FROM "table_64295" WHERE "Average Ratings" = '8.7%'