????? 21??????? By (author): "Yumi Hotta, Yumi Hotta"Genres:Young Adult books Comics books Go books Graphic Novels books Manga books Shonen books ISBN4088734084ISBN139784088734088Asin????? 21???????Original title????? 21???????SeriesHikaru no Go #21????????????3??????????????????2????????VS????VS?????2???????????????????……???????????????????????????????