A cult leader who has his eyes on Molly because of her knowledge in forensics. He believes she can help him with some sort of dark ritual he is planning. There could also be a young journalist who is trying to break a big story related to the dark events Molly is caught up in and follows her around for information. And a homeless man who has seen things related to the crimes Molly is investigating and becomes an unexpected source of help for her.
A mysterious detective from another city who has a different approach to solving crimes compared to Sherlock. This character could initially be at odds with Molly but later become an ally. Another could be a reclusive scientist who has some dark secrets related to the cases Molly is involved in. There might also be a street - smart informant who has connections in the underworld and provides Molly with valuable information, but at a price.
A young and talented artist could be a new character. The empress could commission the artist to create a portrait or some art for the palace, and in the process, a unique friendship or a complex relationship could develop. The artist could also be a source of inspiration for the empress in different ways.
A possible plot is Molly Hooper being drawn into a world of dark magic while trying to solve a strange death at a historical site. It could involve her trying to figure out how the victim was involved with a secret occult group. Or, she could be targeted by a serial killer who has a fascination with her work in the morgue, and she has to use her wits to outsmart the killer. She might also find herself in a situation where she has to choose between her loyalty to Sherlock and her own safety in this dark fanfiction scenario.
A skilled samurai girl from the Iron Country. She could be a master of a unique sword - fighting style. Maybe she initially distrusts Naruto because of the differences between ninja and samurai, but later becomes his ally and friend.
A new character could be a young hacker who initially starts as an adversary to Terry. This hacker could be trying to expose the secrets of Wayne - Powers but then realizes that there are more dangerous forces at work and ends up teaming with Terry. Another could be a genetically - enhanced enforcer working for a new criminal syndicate in Neo - Gotham. He would have superhuman strength and speed, making him a tough opponent for Terry.
An exiled God. He was banished from his own pantheon for some misdeed. In the Highschool DxD world, he is trying to find a way to redeem himself. He has unique powers that are different from the other characters, and his story could be one of redemption and self - discovery as he interacts with the devils, angels, and fallen angels in the story.
A powerful elder who has been in hiding since the fall of the Land of Whirlpool. He could have a vast knowledge of the land's ancient techniques.
A tech - savvy hacker who is initially on the wrong side of the law but later becomes an ally to Batman Beyond. This character could provide valuable information and help Terry with his high - tech battles against villains.
One new character could be a Diabolos Dragon knight. This character has sworn to protect the Diabolos Dragons at all costs and initially sees Issei as a threat. As the story progresses, they might become friends. A female Diabolos Dragon with the ability to shape - shift into human form could also be introduced. She could be a love interest for Issei or a rival for his affections. And then there's the Diabolos Dragon hatchling that Issei finds and decides to raise, which brings a whole new dynamic to the story.
A new demigod from a previously unheard - of god or goddess. Maybe a child of a minor deity who has some unique powers that could either help or hinder Percy in the situation of the collapse. For example, a child of Hypnos who can manipulate sleep and dreams, and their powers could be used to either give Percy visions of how to fix things or put him in a dangerous trance.
A potential new character could be a magical art teacher who has the ability to bring out the best in Evillustrator's powers. Another could be a street artist who becomes friends with Evillustrator and gets caught up in the superhero - villain drama. Maybe a young aspiring artist who looks up to Evillustrator and tries to help him turn good.