I’m Not Obsession Target Of A Villain

After surviving a battlefield soaked in blood, Sara Tresha is adopted into a count’s family.
However, due to her heterochromatic eyes, she becomes the target of hatred from the countess and suffers years of torment.
One day, Sara accidentally meets Cassian Deibarn, and her hidden power of foresight awakens.
Cassian Deibarn— The man who would one day kill his elder brother, the crown prince,
massacre the Tresha household in blood,
and brutally mu*der Sara herself.
Having foreseen her horrific fate, Sara realizes there’s no escaping his grasp…
So she approaches him of her own will.
As a “friend,” not an enemy.
But then—
“If we’re friends, you should stay by my side. Forever.”
The arrow of obsession has turned toward her.
But I’m not supposed to be the villain’s obsession target?!