Grisha or Demigod-Six of Crows

Alayna Nightingale is the ex lover of Kaz Brekker and the only person he allows to touch him.
When Alayna was on the run from Fyerdan scientist, she winded up in Ketterdam. There, she met none other than Kaz. But, after Fyerdan officials raided the Crow Club and risked the chance of him getting thrown into Hellgate, she decided it best to keep her distance. A year later, and Alayna and Kaz have still not spoken to each other. That is until Kaz is offered a heist for 30 million kruge. Like it or not, he needs Alayna's help of the Crows are to succeed.