I've got two on my TBR pile but there both fantasy sorry and one's an urban fantasy hopefully someone else can do better
Across the Nightingale Floor (Tales of the Otori #1) by Lian Hearn In his black-walled fortress at Inuyama, the warlord Iida Sadamu surveys his famous nightingale floor. Constructed with exquisite skill, it sings at the tread of each human foot. No assassin can cross it unheard.
The youth Takeo has been brought up in a remote mountain village among the Hidden, a reclusive and spiritual people who have taught him only the ways of peace. But unbeknownst to him, his father was a celebrated assassin and a member of the Tribe, an ancient network of families with extraordinary, preternatural skills. When Takeo's village is pillaged, he is rescued and adopted by the mysterious Lord Otori Shigeru. Under the tutelage of Shigeru, he learns that he too possesses the skills of the Tribe. And, with this knowledge, he embarks on a journey that will lead him across the famed nightingale floor—and to his own unimaginable destiny...
An international bestseller, Across the Nightingale Floor is the first book in the Tales of the Otori series by Lian Hearn.
Daughter of the Sword (Fated Blades #1) by Steve Bein Mariko Oshiro is not your average Tokyo cop. As the only female detective in the city’s most elite police unit, she has to fight for every ounce of respect, especially from her new boss. While she wants to track down a rumored cocaine shipment, he gives her the least promising case possible. But the case—the attempted theft of an old samurai sword—proves more dangerous than anyone on the force could have imagined.
The owner of the sword, Professor Yasuo Yamada, says it was crafted by the legendary Master Inazuma, a sword smith whose blades are rumored to have magical qualities. The man trying to steal it already owns another Inazuma—one whose deadly power eventually comes to control all who wield it. Or so says Yamada, and though he has studied swords and swordsmanship all his life, Mariko isn’t convinced.
But Mariko’s skepticism hardly matters. Her investigation has put her on a collision course with a curse centuries old and as bloodthirsty as ever. She is only the latest in a long line of warriors and soldiers to confront this power, and even the sword she learns to wield could turn against her.