After stumbling across a haunted go board, Hikaru Shindo discovers that the spirit of a master player named Fujiwara-no-Sai has taken up residence in his consciousness. Sai awakens in Hikaru an untapped genius for the game, and soon the schoolboy is chasing his own dream--defeating the famed go prodigy Akira Toya!

The main storyline takes a holiday, making way for six tales that offer fresh insight into the characters and lives of Akira Toya, Tetsuo Kaga, Asumi Nase, Yuki Mitani, Atsushi Kurata and Fujiwara-no-Sai. Hikaru Shindo figures in some of these and takes center stage in the final tale when he challenges a crooked antique shop owner to a game of go in an attempt to restore an heirloom vase to its rightful owner.