HER TWIN IDENTITY (Athena's darkest secret)

A college normal girl with a normal life.
She just wants to go to school and graduated as a top student. She just wants to have a good work and live a normal life without any help from her selfish parents.
She just wants to reach her dreams, to travel by her own, to have many friends.
She just wants to be treated like a queen, to be loved.
But that normal life she wants turned into a rollercoaster one and turned everything into a nightmare.

And a good nightmare for HER.

Who is that another HER?