In the heart‑pounding Volume 4, the Yamaemori brothers - Mamoru, Kei, and Yu - are dragged into deeper darkness as a betrayal from within shatters their fragile sanctuary. The siblings must unravel a conspiracy of a rogue Tengu cult that threatens not only their bond, but the spirit world itself. As Mamoru’s inner beast claws for control, Kei’s resolve is tested, and Yu must step up - revealing a power he’s only just begun to understand. Loyalties fracture, adrenaline spikes, and the line between brotherhood and bloodshed blurs. Crafted by acclaimed author‑artist Shinta Harekawa, whose dark‑fantasy masterpiece found the limelight in Japan, Three Exorcism Siblings pioneered its mix of visceral action and heartfelt family drama. With meticulous research into Japanese folklore and tengu legend, Harekawa elevates each battle scene to mythic proportions - horror fans and supernatural thriller seekers alike will be spell‑bound. Volume 4 is a visceral punch of emotion, spectacle, and suspense.