In this fanfiction, the Shadow Wolf could be from a different magical dimension. Harry Potter, while exploring some ancient magic, accidentally opens a portal to the Shadow Wolf's world. The Shadow Wolf, being curious about Harry's world, follows him back. At first, they are both strangers in each other's worlds. But as they start to learn about each other's magic and cultures, they fall in love. However, there are those in the wizarding world who fear the unknown and try to separate them. So they must fight for their love against prejudice and dark magic.
The Shadow Wolf could be a very independent character. When it meets Harry Potter, it may not be easily swayed by his fame. Harry would need to earn the Shadow Wolf's trust. They would interact in a way that challenges each other. For example, the Shadow Wolf might question some of Harry's beliefs about magic, and Harry would learn from the Shadow Wolf's more primal and instinctive use of magic. In battles, the Shadow Wolf could use its speed and strength, while Harry uses his spells. Their combined efforts would make them a formidable team, and this would also strengthen their relationship.
One possible plot could be that the Goddess Lemon character enters the Harry Potter universe. She might have special powers that she uses to help Harry and his friends in their fight against Voldemort. For example, she could use her unique magic to break through some of the dark spells that Voldemort has cast.
Hermione could be an interesting choice. She's already very intelligent and powerful, and if she were a shadow wolf Animagus, she could use her new form to access restricted areas of Hogwarts at night for research. Also, her wolf form could help her in battles, using the element of surprise.
One possible plot could be a werewolf in the Harry Potter world who is trying to hide their identity at Hogwarts. Maybe they are a student who has to deal with the monthly transformations while also trying to keep up with their studies and avoid suspicion from the teachers and other students. They could form an unlikely friendship with Harry Potter, who helps them keep their secret and in return, the werewolf uses their unique abilities to assist Harry in his battles against the dark forces.
One possible plot could be that Harry's daughter Lemon discovers she has a unique magical ability that Harry has to help her control. Maybe she can communicate with magical creatures in a way no one else can, and they go on adventures together to learn more about this gift.
One possible plot could be that Naruto discovers a female wolf in the forest while on a mission. The female wolf has some special abilities and Naruto forms an unlikely bond with her. Their relationship develops as they face various challenges together, and perhaps there are some moments of comical misunderstandings due to their different natures.
A possible plot could be that Harry Potter somehow gets transported to Middle - earth where the events of 'Shadow of Mordor' take place. He could use his magic skills to fight against the forces of Sauron in a unique way. Maybe he teams up with Talion and they combine their powers, Harry's magic and Talion's wraith - like abilities, to take on the orcs and other dark creatures.
One possible plot could be that Harry discovers his Animagus form as a dire wolf early on. He then uses it to secretly explore the wizarding world outside of Hogwarts, encountering new magical creatures and secrets. Along the way, he has to keep his form a secret from the Ministry of Magic who might see it as a threat.
In this fanfiction, Harry Potter raised by wolf gods could have a very different personality. Instead of being shaped by the Dursleys' abuse, he would be under the care of the wolf gods. They might instill in him values like loyalty and pack mentality. His magic could be more primal and less refined in the traditional Hogwarts sense. He might even view the wizarding society from an outsider's perspective due to his unique upbringing.
Perhaps Harry is transported to a different dimension where the Power Rangers exist. There, he discovers the Wolf Zord. He has to learn how to bond with it, just like the Rangers do. He could bring some of his magic skills to the table, and in turn, the Wolf Zord gives him new abilities to use against Voldemort or other foes back in his own world.