She must make him fall in love with her before the next full moon… If they’re willing to risk it all, they may find a love to last lifetimes.
Kitsune: A Little Mermaid Retelling (Tales of Akatsuki Book 1) by Nicolette Andrews

Rin is a Kitsune, or at least she was until a witch’s spell turned her human. To regain her powers, Rin must make the lord’s son fall in love with her before the next full moon. She thought it would be easy, her kind have been seducing humans for centuries. But Hikaru is different. He’s handsome, intelligent, and kind –the opposite of everything she’s assumed about humans. The plan is to seduce him and get back her powers, there’s no room for love.

Hikaru never believed in the Yokai. In fact, he thought it foolish to believe in monsters. A lifetime of skepticism has guarded him from truths too painful to accept. And Rin’s mysterious arrival in his life challenges all his long held beliefs. She has bewitched him. Though he is drawn to her, he has to keep his distance. His father’s treaty depends on his marriage to another and even an innocence dalliance could ruin everything.

While they try to deny their attraction, they are drawn together as if by fate’s design. Falling in love is dangerous. Not only are they from different worlds, but their time together can only end in heartache. To break the spell Rin must betray Hikaru or be turned into a fox. But if they’re willing to risk it all, they may find a love to last lifetimes.