Dragon Ball Z is both anime and manga. The anime was adapted from the manga and they share the same story and characters, but presented in different mediums.
The Dragon Ball Saga episodes 86-90 referred to the Japanese manga artist Akira Toriyama's manga work, Dragon Ball, which was also known as Dragon Ball Super. It was based on the adventures of Goku and his friends, telling the story of their battle against evil forces.
Towa can play a significant role in fanfiction. She might be a central villain, driving the plot forward with her evil schemes. For instance, she could be planning to disrupt the time - space continuum in a fan - created story.
In fanfiction, Towa in Dragon Ball Z often has various interpretations. She is a complex character. Some fanfictions might explore her backstory more deeply, like her relationship with other villains in the Dragon Ball Z universe. Her powers and motives can be further elaborated in these stories.
Sorry to disappoint you. The Dragon Ball Z manga is not ongoing. It had its own definitive ending, but its popularity continues through various forms of media and merchandise.
Dragon Ball Z is not based on real events. It's a creation of the author's imagination, presenting a unique and exciting fictional universe filled with characters and adventures that exist only in the realm of fiction.
First, familiarize yourself with the Dragon Ball Z world, its characters, and their personalities. Then, come up with an engaging story that fits within that framework. Pay attention to the action sequences and power levels to keep it consistent with the series.