Twelve-year-old Shindo Hikaru is the most ordinary, unremarkable sixth grader. Once, delving into the attic of his grandfather's house, he stumbles upon an old plaque for Guo. As soon as he touched the board, Hikaru takes hold of the spirit of Fujiwara but Sai, which begins to haunt him everywhere. Once Sai was a great player in Go, but then committed suicide and continued his stay in this world as a spirit that only wanted one thing to play Go again. In the end, Hikaru succumbs to the persuasion Sai and allows him to play Go "through himself", competing in the first game with the young talent - Toya Akira. Time sets in motion when the search for Sai of the perfect game, “the hands of God,” develops.