When Hina Kobayashi arrives at the shadowy Blackwood Academy, she has only one goal: to survive in silence. But hiding her true nature becomes impossible when her red eyes, superhuman strength, and uncontrollable thirst begin to draw attention. Kenji Sato, intelligent and curious, sees in Hina a dangerous mystery. What he doesn't know is that the attraction between them could cost him his life. Surrounded by immortal rivals, warring wolves, enigmatic witches, and secrets that echo through the school's corridors, Hina must choose between protecting those she loves or surrendering to the call of blood. At Blackwood Academy, love can be the deadliest of curses.