【Unused】Educational Karuta Card Set - 7 Types Two types of Hyakunin Isshu (One Hundred Poets, One Poem Each), Two types of Japanese History, Prefectures, Proverbs, Four-Character Idioms These have been stored unused. It seems that some boxes have been opened to check the contents, but the cards themselves are unused. Only the proverb and four-character idiom sets had their boxes torn upon opening, so they have been stored in separate cases. There are no boxes.