Rena's problem

Hi. So this is my first english story. Sorry for the grammar, spelling etc.

Resume :

Rena has been having weird dreams about someone calling out to her.
She couldn't hear him before, but now, it has passed to ask her things.
Once she starts having these dreams someone starts to chase her.
Who is this? Whats his name?
The past is running after, Rena.
Beat it or suffer.
She isn't prepared to battle this yet.
But
She isn't alone.