Kagome could encounter other skilled fighters from different realms. They might be human - like her - but with extraordinary abilities. Or she could run into some strange and magical creatures that are only found in the area where the Dark Tournament is held. There could also be some characters who are there for their own secret reasons and Kagome gets caught up in their plots.
In this fanfiction, Kagome might face some really tough opponents. She could use her spiritual powers in new and unexpected ways to survive in the Dark Tournament. Maybe she'll form new alliances with other characters she meets there.
Inuyasha could be one of the main characters. Since he has a strong connection with Kagome in the original story, he might also be involved in the time - traveling adventure. Maybe he follows Kagome back in time or is already in the past waiting for her.
Inuyasha can be really interesting in this context. His reaction to Kagome's transformation into a Dark Miko would be complex. He's used to the normal Kagome, so seeing her change might make him both worried and a bit on edge. He could try to bring her back to her old self while also being in awe of her new power.
She could meet a wise old hermit who has been living in seclusion for centuries. This hermit could possess great knowledge about spiritual powers and could teach Kagome how to enhance hers. Another potential character is a powerful warrior from a different tribe. They might initially be hostile but later become friends and train together.
Sango could also take care of Kagome. As a strong and kind - hearted woman, she would know how to nurse Kagome back to health. She might use her knowledge of herbs and remedies to make Kagome feel better. Plus, she would offer emotional support to Kagome during her illness.
It could be a jealous member of their group. Maybe someone who is envious of Kagome's special powers or the attention Shippo gets. This person might spread false rumors about them, leading to the rest of the group turning against them.
Inuyasha would most likely be the first one to try and help Kagome. He has a strong bond with her and would not stand by while she's in danger. Sango and Miroku would also probably join in the rescue. Sango with her skills in combat using the Hiraikotsu, and Miroku with his spiritual powers. They are Kagome's friends and would feel obligated to help her.
One possible plot could be Kagome struggling to come to terms with her new vampire nature. She might have to hide it from her friends at first. Then, she could discover an ancient vampire prophecy that she is a part of, which leads her on a journey to fulfill it while also dealing with the challenges of being a vampire, like controlling her thirst for blood.
One possible plot could be that Kagome goes back in time and tries to change a major event in the past. For example, she might try to prevent a big battle that had a lot of casualties. She could use her modern knowledge and skills to her advantage in the past, like using first - aid knowledge to save lives.
The Phantom himself could be an interesting pairing. Their different backgrounds and personalities would create a lot of drama and potential for character growth. The Phantom's dark and brooding nature could be contrasted with Kagome's more positive and empathetic self.