The plot might involve Bella being drawn into the world of the Greek gods. Since Hades is her father, other gods and goddesses might take an interest in her. For example, some might see her as a threat or a potential ally. She could end up in the middle of a power struggle among the deities. Also, her relationship with Edward might be affected. Edward, being a vampire, might be wary of her new powers which could be unpredictable and potentially dangerous to him and his family.
In a 'Bella Swan Daughter of Hades Fanfiction', perhaps Bella is sent on a quest by Hades. It could be a mission to retrieve something from the underworld that has been stolen or lost. Along the way, she has to face various challenges and monsters. She might have to use her wits and her new - found underworld powers. Her friends from Forks might try to help her, but they are out of their depth in this new world of Greek mythology. This could lead to some interesting character development as Bella becomes more independent and powerful.
Well, one possibility could be that Bella discovers her true parentage as Hades' daughter gradually. Maybe she starts to show powers related to the underworld, like being able to communicate with the dead or having some control over shadows. This could put her in a difficult position in the normal world of Forks as she tries to hide these new abilities from her friends and family while also trying to understand her new identity.
Well, it could involve Bella having special powers from being Poseidon's daughter. Maybe she can control water to protect Forks from some new supernatural threats. She might also have a connection to the ocean that draws her away from the normal vampire - human drama in the original 'Twilight' story.
Well, perhaps in the fanfiction, Bella Swan, being Zeus's daughter, is sent to the world of Twilight as a sort of mission. Zeus wants her to bring balance to the vampire - human - werewolf situation. So, Bella uses her godly abilities, like super strength and the power to communicate with animals (a trait she might inherit from Zeus), to make everyone get along better. She might also face challenges from other gods or goddesses who don't want her to succeed in this mission.
Well, one possibility could be that Bella Swan has to deal with the chaos that comes with being the Joker's daughter. Maybe she struggles to balance her normal life, like in Forks, with the dark and unpredictable world of her father. She might have some of the Joker's traits, like a wild sense of humor but also a bit of madness that she has to control.
She would likely become more confident. Knowing she is the daughter of Hades, a powerful god, would give her a sense of self - worth that she might not have had before. For example, instead of being the damsel in distress in her relationship with Edward, she could be an equal partner, using her powers to protect him and his family if needed.
The plot could involve Bella being raised in the Twilight world without knowing her real mother. Then, through some magical event, she finds out she's Bellatrix's daughter. This could lead to a conflict as she tries to figure out where she truly belongs, between the two very different worlds of vampires and wizards. Also, there could be a plotline where she has to face the dark legacy of her mother and decide whether to embrace or reject it.
Maybe Bella Swan discovers Cortez's work and it changes her perspective on something. For example, if Cortez is an artist, his art could inspire Bella in her own life in Forks.
Well, it could be that Bella is secretly an assassin all along in Forks. She's using her relationship with Edward as a cover while she's on a mission to take out some supernatural threats in the area.
One possible plot could be that Bella Swan, in this fanfiction, becomes a huge admirer of the Gilbert family. Maybe she is intrigued by their history in the town. She could start to study their family tree, trying to understand the secrets they hold. This could lead her to befriend members of the Gilbert family and get involved in their daily lives, which might be full of both normal family drama and some supernatural elements as in the original 'Twilight' and 'The Vampire Diaries' universes where the Gilberts are from.
Maybe Bella Swan could be transported to Asgard. She might be mistaken for a powerful sorceress because of her unique connection to the Twilight world. Then she has to navigate the politics of Asgard while trying to find a way back home.
The other gods who don't trust Hades might be antagonists. They could see Bella as a threat because of her relation to Hades. For example, Zeus might be worried that Bella could one day try to overthrow him or cause trouble in the order of the gods.