'Around the World in 80 Days', the famous novel by Jules Verne. The Stardust Crusaders follows with Jotaro Kujo, the 17-year-old grandson of Joseph Joestar, having to defeat Dio Brando who is 9,679 km away. Jotaro Kujo, Joseph Joestar, Mohammad Avdol, Noriaki Kakyoin, Jean Pierre Polnareff, and their unlikely partner, a dog, Iggy, must travel from Japan to Egypt to conquer Dio and his goons with stands named after the 12 Tarot Cards and the Egyptian gods.
[From 1988 to 1989, the story follows Jotaro Kujo and his friends, Joseph, Avdol, Kakyoin, Polnareff, and Iggy as they journey from Tokyo to Cairo to save his mother's life by defeating his family's resurrected archenemy, DIO.]
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The group boards the ship to Singapore and decide to relax, as everyone on board has had their background checked to make sure no one was a Stand user.
Jotaro and Kakyoin absurdly are still wearing their student uniforms, even though the temperature out here is hot. Joseph comments on it.
`Joseph`: "What's with you two!? STILL wearing your school getup!?" *Joseph then mumbles under his breath, shaking his head.* *"It's always the Japanese..."*