Volume 15, Hikaru no Go Wiki

Goodbye (さよなら, Sayonara) is the fifteenth volume of Hikaru no Go manga. Game 122: "Stupid Hikaru" Game 123: "I Do Not Wish to Disappear!!!" Game 124: "Goodbye" Game 125: "Sai Disappears" Game 126: "Searching for Sai" Game 127: "Hiroshima's Top Go Player" Game 128: "The Last Clue" Game 129: "Come Back!" Game 130: "I Will Stop Playing"

Volume 15, Hikaru no Go Wiki

Hikaru No Go at Sensei's Library

Koyo Toya, Hikaru no Go Wiki

Godzilla Wikizilla, the kaiju encyclopedia

Hikaru No Go Manga Volume 14

Disney 100 Magnet Stitch

Nanashi Mumei - Hololive Fan Wiki

List of Chapters, Hikaru no Go Wiki

Hikaru no Go, Vol. 16, Book by Yumi Hotta, Takeshi Obata, Official Publisher Page

Hikaru no Go (TV Series 2020) - IMDb

Hikaru no Go, Vol. 1: Descent of the Go Master by Yumi Hotta

Extra Chapter 2, Hikaru no Go Wiki

Hikaru No Go, Vol. 1: The Go Masters Descent [DVD] : Tomoko Kawakami, Yu Asakawa, Mayumi Asano, Susumu Chiba, Eriko Fujimaki, Keiji Fujiwara, Kentarô Itô, Yumi Kakazu, Sanae Kobayashi, Youko Matsuoka

Hikaru no Go, Vol. 23, Book by Yumi Hotta, Takeshi Obata, Official Publisher Page

Hikaru no Go Manga Volume 13