Secondary Character
The main character is the protagonist, and his/her enemy is the antagonist.
Not the Primary character, but the character that is secondary in the story or novel.
Antagonist whereas the main character or hero is the protagonist.
Yes that would be the definition of "main character."
The character who is telling the story is called the narrator. The narrator sometimes plays an important role in the story and can be the protagonist, or it can be someone on the sidelines who does not take part in the main action.
Each important character in a story moves the story forward.
A person in a story is called a character.
In my opinion Sita is the most important character in Ramayana.
The main female character of a story is usually called the main character. In Epics the main female character is called a heroine.
Dynamic Character
Character development or character arc.
Do you have a pic or what the story is called?