It could be a regular boy named Tom. He's an ordinary kid with a normal life until one day he's struck by a strange ray that makes him giant. As he tries to deal with this new situation, he becomes the main character of this wild 'giant boy shrink story'.
The main character could be a boy named Billy. Billy is a kind - hearted but curious boy. He lives in a small town. One day, a traveling circus comes to town with a mysterious box. Billy, being curious, opens the box and is engulfed in a bright light. When the light fades, he's a giant. As he tries to find a way back to normal, he becomes the main character in this 'giant boy shrink story'.
The plot might involve a boy who is born giant in a world of normal - sized people. He feels lonely and out of place. One day, he discovers a strange potion or a magical device that starts to make him shrink. As he shrinks, he experiences the world in a whole new way, making new friends and learning valuable lessons about acceptance and self - identity.
The giant boy himself could be the main character, of course. He's the one with the unique situation of 'voring' things.
Since we don't have much information, the main character could be an ordinary - looking boy from a small town. He might have a normal family, but something about him is special that leads to his growth. It could be his determination, his kindness, or some hidden talent that gets triggered and starts his growth journey, whether it's physical, mental, or emotional growth.
Since I don't know the specific'shrink girl story', I can't say for sure who the main character is. It could be an ordinary girl who suddenly finds herself in this strange shrinking situation.
The fat boy and the giant boy are surely the main characters. However, there could be other supporting characters that we don't know about yet. Maybe there are friends or foes of the fat boy and the giant boy that play important roles in the story as well.
The main characters are, of course, the giant and the little boy.
The main characters are the boy and the giant snake. The boy could be an ordinary child or someone with special qualities. The giant snake, on the other hand, could be a fearsome creature, but it may also have a complex personality. Their interactions, whether it's a conflict or an alliance, form the core of the story.
Maybe it's an alien being who has a different body structure and the 'big boobs grow giant' is a normal part of their growth cycle on Earth. This would make the story about how they adapt to Earth while also dealing with this growth and how humans react to it.
A thief might be the main character. They were trying to steal something from a strange laboratory when they accidentally triggered a device that shrunk them. Now they are in a world with a giant man. At first, they might try to steal from the giant man too, but as they get to know him, they have a change of heart and end up helping the giant man instead of causing more trouble.
The obvious main character would be the delivery boy himself. He could be a young guy just trying to make some money to support his family or pay for his studies.