Seeker

The night Quin Kincaid takes her Oath, she will become what she has trained to be her entire life. She will become a Seeker. This is her legacy, and it is an honor.
As a Seeker, Quin will fight beside her two closest companions, Shinobu and John, to protect the weak and the wronged. Together they will stand for light in a shadowy world.
And she'll be with the boy she loves--who's also her best friend.
But the night Quin takes her Oath, everything changes.
Being a Seeker is not what she thought. Her family is not what she thought. Even the boy she loves is not who she thought.