The official Twitter account of George Morikawa's Hajime no Ippo boxing manga announced on Friday that the manga has reached over 100 million copies in circulation, with the release of the manga's 138th compiled book volume, also on Friday.
The cover illustration of the manga's 138th volume pays homage to the manga's first volume, which was published in Japan in February 1990. The manga's commemorative illustration for the 100 million milestone will publish in Shogakukan's Weekly Shōnen Magazine's 33rd issue on Wednesday.
Morikawa expressed his gratitude to the manga's fans for reaching the milestone, and added that the manga is "halfway through" the story, and asked fans for their continued support. Morikawa launched Hajime no Ippo in 1989, and the series is his only manga.