Damn I feel so bad for Hikaru. Sai being gone feels all too real in this chapter. Hikaru is shown a room full of recorded Go games. He decides to see Torajiro's games because he knows Sai played all those games. While reviewing his games, Hikaru finally realizes how much of a genius Sai really was and he's feeling overwhelming regret. He tells himself he should have just let Sai play all the games he wanted and he starts crying asking for Sai to come back.
Afterward, Hikaru begins missing games he's scheduled to play. Akira gets angry that Hikaru is not there.
I was worried that this would happen to Hikaru. He would lose the will to play and get depressed.