We Hunt the Flame by Hafsah Faizal

People lived because she killed. People died because he lived.

Zafira is the Hunter, disguising herself as a man when she braves the cursed forest of the Arz to feed her people. Nasir is the Prince of Death, assassinating those foolish enough to defy his autocratic father, the sultan. If Zafira was exposed as a girl, all of her achievements would be rejected; if Nasir displayed his compassion, his father would punish him in the most brutal of ways. Both Zafira and Nasir are legends in the kingdom of Arawiya–but neither wants to be.