Dancing In The Wind | Assasinator!Levi

Cierra Knightly, the only female who can possibly be Queen in the Kingdom of Beatha (Ba-ha). If she weren't to marry the King of the land, and conceive a pure royal-blood child, the rebels were able to take over. Her father insists she stay away from the towns and villages in fear of losing her, and letting the kingdom fall apart.
This wasn't going to stop the rebels from killing her though.

The dreadful night came, an assasinator, Levi, carried out a family massacre. However, he showed sympathy to Cierra, even though she was the main target. He left, leaving her alone in hopes that she may commit suicide and complete his mission.

But Cierra did the opposite of what he thought. Now, living under King Erwin's care, she agreed to wed him and the wedding was to happen in a few months. Levi returned to finish what he was ordered to do but found himself falling in love with the princess...
He begins to deeply regret what he was a part of but doesn't tell her.