Dio is extremely interesting. His megalomaniac nature and his unquenchable thirst for power make him a standout. He's not just a one - dimensional villain; his backstory and his complex relationship with other characters add depth to his character.
I would also consider Enrico Pucci to be an interesting character. His loyalty to Dio and his own brand of villainy, which is somewhat different from the typical 'in - your - face' villainy, make him a character worth paying attention to. His actions are often calculated and his long - term plans create a lot of intrigue in the story.
Another theme could be the idea of destiny. The characters seem to be on a pre - determined path, yet they constantly struggle against it or try to rewrite it. This is seen in how they make choices that either align with or oppose what seems to be their 'destined' roles.
Dio is surely one of the main characters as the title implies. There might also be characters like Jotaro Kujo who often has conflicts with Dio in the JoJo's universe. They could be involved in battles and power struggles in this light novel.
Hua Cheng is really interesting. He's this powerful and mysterious character. His love for Xie Lian is so intense and unconditional that it makes him stand out. He has a complex past and his actions are often driven by his love and loyalty to Xie Lian.
Jotaro is often a popular character. His cool and stoic demeanor, combined with his powerful Star Platinum stand, makes him a natural fit for the gamer - themed fanfiction. He could be portrayed as a top - tier player in the game world, easily taking on challenges.
Gumball and Jotaro would be really interesting. Gumball's energetic and goofy nature would contrast greatly with Jotaro's cool and stoic demeanor. They could learn a lot from each other, like Gumball could teach Jotaro to have a bit more fun, while Jotaro could show Gumball how to be more serious when the situation demands it.
Feng Xin and Mu Qing are interesting as well. Their long - standing relationship with Xie Lian, full of loyalty, envy, and complex emotions, provides a lot of depth to the story.
The most interesting part is the power combination. For instance, seeing how Naruto's Rasengan would fare against a JJBA stand is really exciting.
Kakyoin and Loki Warframe would make a fascinating pair. Kakyoin is very intelligent and strategic with his Hierophant Green stand. Loki, on the other hand, is all about stealth and deception. They could combine their skills to infiltrate enemy bases in the crossover. Kakyoin could use Hierophant Green to scout ahead while Loki keeps them hidden from detection.
Akira and Giorno would make an interesting pairing. Akira has his leadership skills and the ability to use Personas, while Giorno has his determination and powerful Stand, Gold Experience. They could learn from each other's sense of justice and different ways of achieving their goals. Akira could teach Giorno about the power of the collective, as the Phantom Thieves work as a team, and Giorno could show Akira how to be more assertive and decisive in his actions.