The main character is probably a woman with extraordinary strength and determination. Given the title 'the iron woman novel', she could be a businesswoman, or a fighter for social justice. She might have had a difficult past that made her so tough, and she is now on a mission to achieve something great in the story.
Most likely, it's the 'iron woman' herself. She would be the central figure around whom the story revolves.
It could be a woman who has been through a lot in her life. Maybe she was born into a poor family and had to fight for her own survival. As she grows up, she becomes the 'iron woman' and is the main character. She might be a leader in her community, or she could be an artist who uses her work to express her unyielding spirit. She would be the one who drives the plot forward with her actions, decisions, and relationships with other characters in the novel.
It could be Tony Stark's daughter. She might have inherited her father's genius and his sense of justice. Growing up in the shadow of her father, she decides to take on the mantle of Iron Man to prove herself and carry on his legacy.
Obviously, the main character would be the sorrowful woman herself. She is the central figure around whom the story revolves.
I think the main theme might be about female empowerment. The 'iron woman' in the title probably represents a strong, unyielding female character who overcomes various difficulties.
The main character could be a career - driven woman who has been in the workforce for a long time. She has climbed the corporate ladder but at the cost of some personal relationships. And she has secrets about the compromises she has made along the way, like how she has dealt with office politics and backstabbing while still maintaining her position.
There's no way to be certain without reading the novel, but it could be a young sidekick - type character. Maybe someone who was in the wrong place at the right time and got involved with Iron Man. This character might start off as an ordinary kid but gradually develop into a hero in their own right within the context of the story.
It could be Midoriya. Imagine Midoriya getting access to Iron Man's technology. He's already a determined and intelligent hero - in - training, and with Iron Man's tech, he could become even more powerful. He might struggle at first to adapt to the new technology, but his strong will would drive him to master it and use it to protect others in new and exciting ways.
The main character would obviously be the woman who is about to transform into a worm. She could be an ordinary woman living an ordinary life until this strange event occurs.
It could be an ordinary man. Just an average guy going about his day until this strange and violent transformation happens to him.
The main character could be a brave tiny woman who is not afraid to face the challenges related to vore. She might be a curious explorer, always looking for new things in a world full of strange and large creatures.
Obviously, the main character is the valiant woman herself. She is the focus of the story as the title implies.