Jojo's Bizarre Adventure has evolved over its 30-year run, making it one of the longest manga series at 133 volumes. Hajime no Ippo, spanning 139 volumes since 1989, is a great sports manga that explores the stories of multiple boxers. The Ginga franchise, with a total of 147 volumes, follows the adventures of the dog Gin and his descendants as they survive in the wilderness.

While many manga creators like to create multiple smaller stories, there are some mangaka who pour their energy into continuing one long series, resulting in some of the longest manga of all time. This has led to the creation of some of the most iconic franchises in Japan and some of the best manga series out there. Despite their length or perhaps because of it, many of these manga are well worth reading.

When judging the length of a manga, there are a couple of different metrics that can be used.