Private Japanese Hikaru student after school decides to pay a visit to his grandfather`s attic to profit there is something interesting and useful. Did he think, when les antiques that find - an old table for a game of go - turn fatal and completely overturn his life. By coincidence Hikaru stumbles not a simple table,of which Tokyo is full, and on the subject, in which the spirit lives by the name of Sai for many decades eager to escape to freedom. Even in the era of feudal Sai being the greatest master of his time, by a strange coincidence, it turned out to be locked up in the board, and now, when the world has changed beyond recognition,and it turned out to be the savior of an ordinary Japanese boy, he finally found a cherished freedom. So Hikaru unwittingly acquired a strange and terrible pristavuchie disembodied friend who is able to see only it and a master Sai decades dreamed of playing your favorite game gets such an opportunity.