Hikaru no Go, Vol. 19: One Step Forward! follows the journey of Hikaru Shindo who, after discovering a haunted go board, is possessed by the spirit of a master player named Fujiwara-no-Sai. This encounter awakens an untapped genius for the game within Hikaru, propelling him to pursue his dream of defeating Akira Toya, a famed go prodigy.

After stumbling across a haunted go board, Hikaru Shindo discovers that the spirit of a master player named Fujiwara-no-Sai has taken up residence in his consciousness. Sai awakens in Hikaru an untapped genius for the game, and soon the schoolboy is chasing his own dream--defeating the famed go prodigy Akira Toya!

Akira is beginning a new school year at Kaio Middle School. With his daunting reputation as the Toya Meijin's son, Akira finds he must prove himself to more than a few mean and jealous classmates. And with the help of upperclassman Yuri Hidaka, Akira finds the confidence to persevere in his hunt to beat Hikaru. Meanwhile, Hikaru is having a hard enough time just trying to find a third teammate to play in the Haze Middle School Go Club. A possible teammate arrives in the form of Yuki Mitani--but will he join their club or continue to swindle old timers for their pocket change?