Ayakashi doesn't care if you're rooting for the hero. It feeds on the idea that saving people costs something nobody wants to pay, and watching Yuu discover that the power to protect isn't the same as the right to protect tears the whole premise apart. The show sprints through its own plot like it knows you'll hate some of it anyway, which means it commits to the dark turns instead of softening them. By episode three you're not watching a battle shounen, you're watching a kid realize his gift is actually a parasite wearing a hero's skin.
Kusaka Yuu has stopped caring whether he lives or dies. A devastating loss left him hollow, going through motions at school with no real reason to keep going. Then Yoake Eim appears, a girl who drags him into a world he never knew existed. Ayakashi are parasitic entities that bond with human hosts, granting extraordinary abilities in exchange for consuming their entire lifespan. These creatures and their enhanced users hunt relentlessly, and Yuu finds himself caught in their crosshairs. Something dormant inside him awakens in response to the threat, a power that forces him to fight whether he wants to or not. Pulled between Eim's cryptic agenda and an escalating cycle of battles, Yuu discovers that his indifference toward life might be exactly what makes him dangerous. Survival becomes less about choosing to live and more about the violence demanded of him. This action-driven story blends supernatural horror with existential dread, following someone who must fight to exist even when existence no longer seems worth the struggle.