Carlisle from 'Twilight' is an interesting character to include. His self - control and moral compass as a vampire could be explored further in a 'Love Story' - Twilight fanfiction. In 'Love Story', the father figure could also be an important addition as he represents a more traditional view of love and relationships. And Rosalie from 'Twilight', with her complex backstory and her own take on love and beauty, can add depth to a story that combines the two universes.
Alice is also a great choice. Her bubbly personality and ability to see the future could make the game really interesting. For example, she could be the one who predicts the pairings accurately or she could mess with people's expectations during the game.
The mafia bosses are often very interesting. They usually have a strong presence and a complex personality. They're in charge of everything and have to make tough decisions. Also, the characters who are caught between the mafia world and the normal world, like a human who falls in love with a mafia vampire. They have to navigate two very different worlds.
The daughter herself is often the most interesting character. She's a new addition to the Twilight world, and her very existence challenges the norms. Her personality, which could be a blend of her parents' traits and her own unique qualities, makes her stand out.
Jacob could be an interesting addition. He might show up unexpectedly, and his presence could create some tension between Bella and Edward. His wolf nature could also interact in an interesting way with the vampire - dominated environment of their honeymoon. For example, he could sense some hidden danger on the island that the vampires are oblivious to.
The Sage of Six Paths could be included. As he is the originator of many ninja powers, his connection to Amaterasu could be explored. Maybe he had a hand in creating or containing the power. His presence in the fanfiction would raise the stakes and give a more epic feel. Additionally, Hinata could be in the story. Her love for Naruto could play a role, for example, if Naruto is in danger because of Amaterasu, Hinata could try to save him in her own way.
Sasuke is a great character to include. His cool and brooding personality can create interesting dynamics in crossovers. For example, if he crosses over into the world of Attack on Titan, his skills as a ninja would be put to the test against the Titans. Another interesting character is Kakashi. His laid - back yet highly skilled nature can add humor and action to crossovers. He could be a great addition in a crossover with the world of Inuyasha, sharing his knowledge of combat and jutsu.
The main characters from the original story are always interesting to expand on. But also, a local shaman type character could be fascinating. They could have knowledge about the 'ghost' and the 'darkness' and try to use their powers to either stop or control them.
Bella Swan can also be really interesting. She's the human who gets caught up in the vampire world. In fanfiction, her character could be developed further, like exploring her reactions to different situations more deeply. Maybe she becomes more assertive or discovers new abilities. Jacob Black is another one. His loyalty and his werewolf nature add a lot of depth to the story. In fanfiction, his relationship with other characters could be explored in more detail, like his rivalry with Edward in a different light.
Alice is a very interesting character to write about. Her ability to see the future gives so many possibilities for plot twists. Writers can explore how she might use or be haunted by her visions in different situations. Another is Jasper. His past as a Confederate soldier and his struggle with his bloodlust can be delved into deeply.
For me, Jasper is really interesting in Twilight fanfiction. His past as a Confederate soldier and his struggle with his bloodlust are great elements to explore. Victoria is also a character that offers a lot. Her thirst for revenge against the Cullens can be the basis for some really intense and action - packed fanfiction. And Emmett, with his big and boisterous personality, can be used to add some humor and light - heartedness to the often - dramatic Twilight fanfic world.