When ancient vampire and werewolf loyalties fracture, Ema must choose between secrets that could save her - or destroy the fragile bonds holding her world together. The fragile peace between humans, vampires, and werewolves begins to crack. As Ema's immunity becomes the epicenter of escalating conflicts, she's drawn deeper into a clandestine war where alliances shift like shadows. A covert faction emerges - monsters who believe Ema's blood could tip the balance of power. With Taiga at her side, she stalks the spectral corridors of Tokyo's underbelly, following haunting whispers of a ritual that could awaken something ancient and catastrophic. As moonlight collides with neon, Ema faces a harrowing truth: to protect those she cares about, she may need to embrace the very darkness she's resisted. Her bond with Taiga intensifies - but can love endure when destinies - and lifetimes - are at stake? Blending the dark romance and supernatural tension of Twilight with intense action, Volume 4 pulls readers into a storm of passion, betrayal, and mythic conflict. With Akira Kanou's expressive linework and intricate worldview, this volume deepens the supernatural suspense, intertwining heart-pounding action, personal discovery, and the chilling mythos that makes Outsiders unforgettable.