In a 'birth in elevator' fanfic, the main characters would likely include the pregnant woman. Her partner, if he is also in the elevator, would be another main character. And then there could be a random stranger in the elevator who has some sort of medical or emergency response training. This person could step up and help with the birth, making them an important main character in the story.
One possible plot could be that a pregnant woman suddenly goes into labor while in the elevator. Maybe she was on her way to the hospital but didn't make it in time. The other people in the elevator might initially panic but then try to help. Some could call for medical assistance while others try to make the woman as comfortable as possible.
In some cases, it might be well - known characters from the original work (if it's a fanfic based on an existing series). For example, if it's a fanfic related to a fantasy book series, it could be the main hero or heroine of that series who has to endure a 'birth by fire' situation to fulfill their destiny.
Obviously, Ana herself would be the central character. Her partner could be an important character too, being there for her during the pregnancy and birth. Maybe her mother or a close female friend who offers advice and support.
Katniss could be a great supporting character. She has been through so much with Annie and Finnick in the Hunger Games world. She could offer her support during Annie's pregnancy, maybe bringing over some of her hunting spoils as a gift for the expecting couple. Peeta could also be there, using his baking skills to make special treats for Annie when she has cravings.
There could be a young man and a young woman. The man might be a busy office worker, always in a hurry, and the woman could be a creative type, like an artist. They meet in the elevator and are the main characters in this love story.
The main characters are Charlie Bucket and his family. Charlie is the central character, of course. His family members, who he shares his adventures with in the glass elevator, are also important in the story.
I don't have enough information to say who the main characters are. They could be ordinary office workers, a maintenance person for the elevator, or perhaps a group of strangers with different backgrounds.
There could be other characters too, like the Sage of Six Paths. He might play a crucial role in the Juubi's birth in the fanfic. And also, villains from the Naruto universe could be involved, as their actions might have either directly or indirectly led to the birth of the Juubi.
The main characters could potentially be a new set of ninjas created specifically for this fanfic. They might be a group with a special connection to nature and the forest. Maybe there's a young ninja who discovers an ancient scroll that holds the key to creating the forest. Alongside this young ninja, there could be an old and wise mentor - like figure who guides them through the process of bringing the forest to life. Another possibility is that it could involve some of the minor characters from the Naruto series who are given more prominence in this fanfic, such as the forest - dwelling clans that we don't see much of in the original story.
It could feature new characters created specifically for this fanfic. Maybe there's a hermit who has been living in the area where the forest is born and has some knowledge about its secrets. Or perhaps a young ninja from a small village nearby who discovers the forest first and then gets involved in a bigger adventure related to it. However, it's also possible that it mainly focuses on well - known Naruto characters like Sasuke or Sakura, who might have different roles in relation to the forest's birth, like Sasuke using his Sharingan to uncover some hidden truth about the forest.