Hikaru Shindo is just a normal 12 year old boy, but one day he’s rumaging through his Grandfather’s things to see if he can find something to sell and pulls out an old Go board. A ghostly apparation appears out of the board and tells Hikaru his sad story. His name is Sai Fujiwara, a man who was a Go instructor to the emperor of Japan a thousand years ago. However, because of bad sportsmanship of his opponent during a game, Sai was accused of cheating and banished from the city.