The Dark Elements by Jennifer L. Armentrout
Seventeen-year-old Layla just wants to be normal. But with a kiss that kills anything with a soul, she’s anything but normal. Half demon, half gargoyle, Layla has abilities no one else possesses. Raised among the Wardens—a race of gargoyles tasked with hunting demons and keeping humanity safe—Layla tries to fit in, but that means hiding her own dark side from those she loves the most.