The main protagonist of each story is thrown into prison for a crime they didn't commit, and eventually they go on to uncover the villain's plot while attempting to break out of prison. Supernatural hijinks, weird characters, and brutal action sequences start popping up throughout the course of the manga.
Your framed and thrown in prison where you discover weird world full of crazy abilities, unusual people and epic battles, how will your survive? How will you escape? If I got your attention then you might like these manga, so I suggest you go and give them a read you won't be disappointed.
Both series star the child of the previous main character being Jolyne Kujo, daughter of Jotaro Kujo & Tsurugi Shishimaru, son of Tsurugi Momotaro. Their parents also play a role in the story, often aiding them in combat while displaying their responsibility as a father. These manga contain over-the-top battles filled with hot blooded fury & various tragic moments. Jolyne & Shishimaru also cooperate as a leader figure with their friends who with their combined efforts overcome many foes.
Both series begin with our main character being in prison, fighting various overpowered inmates until they make a prison break. Afterwards, both mangas feature a hunt for the series villain & climatic battles with very similar endings that emphasizes tragedy. Riki-Oh is inspired by Fist Of The North Star, displaying mutant like enemies, cyborgs, violent fights & supernatural powers. Stone Ocean is feminine with a team of characters but holds the same brutality & insanity as Riki-Oh.
These manga begin in a prison setting where Baki and Jolyne violently battle against inmates. Both series are sequels that share over-the-top events and outrageous feats of power(Stone Ocean is more supernatural). Jolyne and Baki have their share of father issues who gradually become closer to their family.