A woman stumbles into the Shinsengumi during the fall of the samurai, and suddenly she's the only person keeping these supernatural warriors human. The show trades plot momentum for the slow burn of watching dangerous men lower their guard around her. Every character is designed to make you want to understand what breaks them, and the romance isn't decoration, it's the entire point of the story existing at all.
Chizuru travels to Kyoto searching for her missing father, a doctor who vanished without explanation. Instead of finding him, she stumbles into a brutal confrontation between street thugs and the Shinsengumi, an elite swordsman corps serving the shogunate. When the dust settles, she discovers these fierce warriors are also hunting for her father, and they reluctantly agree to let her join their ranks as they investigate his disappearance. Living alongside samurai soldiers transforms Chizuru's simple rescue mission into something far stranger. Supernatural forces lurk beneath Kyoto's surface. The Shinsengumi harbor dark secrets of their own, and her protectors begin to change in ways that defy explanation. As Chizuru grows closer to uncovering the truth about her father's whereabouts, she realizes the mystery connecting him to the supernatural threats plaguing the city runs deeper than anyone anticipated. This is historical drama twisted through a supernatural lens, where romantic tension simmers between a determined woman and the conflicted men sworn to protect her, even as ancient horrors emerge from the shadows.