The Joestar family members are the main characters. Jonathan Joestar is one of the important ones. Also, Dio Brando plays a significant role as a villain.
As it's not an established official part, it's difficult to say. But if it were in line with the main series, there might be a Joestar descendant as a main character, who is brave and has a strong sense of justice.
Jonathan Joestar is often popular. His noble nature can be interesting to explore in a gamer fanfiction context, like how he would adapt to game - like challenges.
Well, let's not forget Polnareff. His flamboyant French personality and his quest for revenge are quite engaging. He also has the Silver Chariot Stand, which is a very interesting and powerful one. Another memorable character is Caesar Zeppeli. His relationship with Joseph and his use of Hamon techniques added a lot of depth to the early parts of the story. And Rohan Kishibe, with his self - centered but highly talented artist personality, is also a character that sticks in the reader's mind.
Once upon a time in the world of Jojo, Jonathan Joestar was on a quest. He had to face the evil Dio. One night, as he was resting in an old, spooky mansion during his journey, he heard strange noises. But he wasn't afraid. He knew his Hamon powers would protect him. He got up, and with his brave heart, he explored the mansion. In the end, he found out it was just a stray cat that had made all the noise.
Well, the 'jojo's bizarre adventure novel' has a really complex plot. It spans generations of the Joestar family. There are different arcs, like the one where Dio Brando is a major villain. He has his own evil plans which often put the Joestars in great danger. And the characters keep evolving and facing new challenges in different locations around the world.