A werewolf with a Crystalized heart

What happens when a young girl is all alone in a world where things are not always what she wants. In her society, you become an adult at the young age of sixteen. However, she has basically been alone since she was a young child. In her world, you are born with a timer in your wrist, and when it counts down to zero, you meet your soulmate. She is a very special person she just does not know it yet. She was born with two, so what happens when even with everything else going on, she has to choose between her two soulmates. Or does she...