With his two friends, a video-game-obsessed young man finds himself in a strange version of Tokyo where they must compete in dangerous games to win.

Morioh, 1999—a normally quiet and peaceful town has recently become a hotbed of strange activity. Jōtarō Kūjō, now a marine biologist, heads to the mysterious town to meet Jōsuke Higashikata. While the two may seem like strangers at first, Jōsuke is actually the illegitimate child of Jōtarō's grandfather, Joseph Joestar. When they meet, Jōtarō realizes that he may have more in common with Jōsuke than just a blood relation. Along with the mild-mannered Kōichi Hirose and the boisterous Okuyasu Nijimura, the group dedicates themselves to investigating recent disappearances and other suspicious occurrences within Morioh. Aided by the power of Stands, the four men will encounter danger at every street corner, as it is up to them to unravel the town's secrets, before another occurs.

To defend their kingdom against a sudden invasion, a mighty general returns to the battlefield alongside a war orphan, now grown up, who dreams of glory.

During the Heian period, Abe no Seimei trains in magic but lacks interest, until a collaboration with Minamoto no Hiromasa arises to solve a strange phenomenon.

The once-proud Japanese Ninja disappeared after the war when GHQ disbanded their organization.However, in reality ninjas still exist secretly and it is said that there are 200 thousand of them.And some elite ninjas are secretly operating behind the scenes in national-level struggles.On the other hand, grassroots ninjas often cannot find jobs, and one of them, Yun Yin Jiu Lang, also lives a life similar to that of the NEET generation.However, there is finally a major "endurance" around Ninomaru!