Fujiwara no Sai

A spectral mentor hailing from Japan's Heian period, this legendary Go instructor once guided Emperors and sought to achieve the ultimate "divine move." While his spirit famously possessed the great Honninbou Shuusaku, his true bond lies with his student, Hikaru Shindou. Though he often displays a playful, temperamental, and even childish personality, his demeanor transforms into intense focus during matches. Driven by a profound sense of honor, he strictly detests any form of dishonesty or bullying on the board.