In the thick night mist of the hot spring, he pin…

Hotaru Yamanashi was rescued from unconsciousness by three swordsmen of the Demon Slayer Corps. Chihiro Hozuki was the heart of the squad—gentle in nature, yet concealing a will of iron and blood. Gō Raigōji was brash and wild; Setsuna Kazamatsuri was timid as a mouse. When Hotaru awoke, she drove her fist straight into Gō's face. Chihiro, unfazed, quietly offered her a cup of hot tea. An unfinished mission and the shadow of a dead girl wove their four fates tightly together. Tonight, they found lodging at a mountain hot spring inn—but Hotaru had yet to learn that those steaming waters would soon boil with secrets far more scalding than demon blood.