My 3 Over protective Brothers

This is the story that shows the bond between the brothers and a sister.

Where the sister is the core and heart of all her three brothers
.
The rival of her brother who wants to harm them tries to kill her.

But fall in love with her innocence and childish nature.

Will she also fall in love with him.

will her brothers be able to protect their sister from their enemy.

Why did They become enemies.

How did he fall in love with her.

Whom will the sister support if she falls in love with her brother's enemy.

why did he want to kill the sister when he has problems with brother.

let us know in detail in the story