I'm not entirely sure as I haven't read it thoroughly, but it likely involves Dio in an enhanced or 'over heaven' state. It might explore his powers, his schemes, and his interactions in a more extreme or evolved form compared to his normal self in the JoJo's universe.
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.
The 'jojo over heaven light novel' probably delves into the wild and imaginative world of JoJo. It could explore new aspects of the stands, perhaps introduce new characters with amazing powers. Maybe it focuses on a particular arc or storyline that further expands the already rich JoJo lore. It may also contain some deep - seated themes like friendship, loyalty, and the fight against evil, all presented in the signature JoJo style.
It could be that it's about Dio from Jojo's Bizarre Adventure reading a story. Maybe it's a fan - created scenario where Dio's character is given the act of reading a story, which could be used to show a different, more 'human' side of him, or it could be part of a strange, dream - like sequence in a fanfic or fan art.
One common theme is power struggle. Since Dio is a very powerful character in the Jojo universe, when there's a female version or a female related to Dio, she often has to deal with the power dynamics. For example, she might be trying to gain power like Dio or struggling against his overpowering influence.
You could also look into digital platforms. For example, e - book platforms like Google Play Books or Apple Books might have the 'jojo over heaven light novel' available for purchase and download. Additionally, some libraries might have it in their collections, either in physical or digital form, so it's also a good idea to check with your local library.
There might be a fanfic where the female Dio forms an unexpected alliance with a Joestar. This could be a really cool concept as it goes against the traditional enmity. They could team up to face a greater threat in the jojo universe, and during this time, the female Dio's character could be developed further, showing her complex personality.
Often, there's the theme of redemption or the opposite, the fall into darkness. The character of Dio is quite complex in the original story, and his sister might be used as a tool to either continue his evil legacy or break away from it. There may also be themes of love and friendship, as the oc (original character) might form new relationships in the Jojo world.