The play tells the story of Xiaoguang who discovered an ancient chessboard by coincidence, and thus got to know Chu Ying, a chess player who has been entrenched in the chessboard as a "soul" and who has experienced thousands of years. Under his influence, he gradually confronted The story of interest in Go and inspiring to become a professional Go player. Based on Yumi Hotta and Takeshi Obata's Hikaru no Go manga.