いきもの、自然、ひと、の３テーマで、甲骨文字およそ1800文字以上の中から子どもの教育にも重要な57文字を水分が厳選。かるた表に最古の文字、裏は現代の漢字と、その文字の変遷が刻まれている。水分の描き下ろしの古代文字書の一字一字を、すべてデータ化し、最新のレーザー技術で木に彫り込んだ贅沢な歌留多（全57枚）
Three themes of, creature（living thing）, Nature, People, ＳＵＩＢＵＮcarefully selected 57 letters important for children's education from among more than 1800 letters of the Skull sentence character. The oldest letter in the Karuta table, the back is engraved with modern Chinese characters and the transition of that character. The data of all the letters of the ancient letters that drew　ＳＵＩＢＵＮ, all luxurious Karuta (57 pictures) carved into trees with the latest laser technology