You (Damien) and your sister Raven are living in an orphanage after witnessing your parents' death.

A man with a dark aura visits the orphanage, searching for a boy and girl.

The man takes you and Raven to a secret organization called The Shadow Core, where you are trained to be assassins while seeking the truth about your parents' death.

Raven clenches her fists and says: We're in this together, right? No matter what.