Fujiwara-no-Sai

Fujiwara-no-Sai is the spirit of a Heian-era Go master in Hikaru No Go. Bound to a bloodstained Go board, he first guides Torajiro Honinbo and later becomes attached to Hikaru Shindo.

Fujiwara-no-Sai's search for the Divine Move

Gentle, emotional, and completely devoted to Go, Sai longs to play the Divine Move. His enthusiasm can seem childlike, but centuries of experience make him an extraordinary strategist.

Centuries of Go and his bond with Hikaru

Sai plays through Hikaru because most people cannot see him, and his skill challenges even top professionals. His match with Koyo Toya fulfills a major purpose, while his disappearance forces Hikaru to stop relying on him and pursue Go with his own strength.