Smoke in the Sun by Renée Ahdieh

For weeks, seventeen-year-old Mariko pretended to be a boy to infiltrate the notorious Black Clan and bring her would-be murderer to justice. She didn't expect to find a place for herself among the group of fighters—a life of usefulness—and she certainly didn't expect to fall in love. Now she heads to the imperial castle to resume a life she never wanted to save the boy she loves.

Ōkami has been captured, and his execution is a certainty. Mariko will do what she must to ensure his survival—even marry the sovereign's brother, saying goodbye to a life with Ōkami forever.

As Mariko settles into her days at court—making both friends and enemies—and attempting Ōkami's rescue at night, the secrets of the royal court begin to unravel as competing agendas collide. One arrow sets into motion a series of deadly events even the most powerful magic cannot contain. Mariko and Ōkami risk everything to right past wrongs and restore the honor of a kingdom thrown into chaos by a sudden war, hoping against hope that when the dust settles, they will find a way to be together.

Set against the backdrop of feudal Japan, Smoke in the Sun is the breathless, romantic, not-to-be-missed fiery conclusion to a spell-binding adventure.