Clockwork Assasins

Clockwork Organization is the most powerful group that trained the most deadly assassins in the world. Xena is recruited by them at a young age. Now at the age of seventeen,she is the most deadly and skilled assassin that is trained by them. Xena is given the mission to guard the next head of the Spades Clan,the infamous spoiled brat Cassandra Spade,from the Blackwell assassins. Can she protect her without falling in love with Cassandra or the assassins will succeed in assassinating her?