Sankarea is a romance-horror series where the male lead is obsessed with zombies, and the female lead literally becomes one. The OVA episodes show the before: Chihiro as a kid with a missing mother, Rea as a girl still trapped in her abusive home. These aren't epilogue bonuses. They're the foundation that makes the impossible love story in the main series actually devastating instead of just weird. The show commits to the bit in a way most romance anime won't. Chihiro doesn't want a zombie girlfriend because he's quirky or horny. He wants her because he's already broken by loss. When Rea dies and comes back wrong, it's not a plot twist that makes their relationship cute. It's proof that he was always willing to accept her at her worst. The OVA explains why a story about necrophilia somehow becomes about devotion instead of depravity. The tonal whiplash between comedy, body horror, and genuine tenderness will lose people in episode one. Everyone else will understand exactly why this show matters.
Chihiro harbors an obsession with zombies that borders on unhealthy, spending his days crafting resurrection potions in hopes of bringing the dead back to life. His fixation stems from a childhood tragedy he can barely remember, one involving his mother and a bridge that haunts him despite the gaps in his memory. When a beautiful girl named Rea stumbles into his life under mysterious circumstances, everything shifts. She becomes the unexpected subject of his experiments, yet their relationship transcends the morbid nature of his quest. As Rea's past unravels and Chihiro pieces together fragments of his own forgotten history, the two find themselves bound by forces neither fully understands. What begins as a darkly comedic romance spirals into something far more complicated, where supernatural horror meets genuine emotional stakes. The story weaves between their developing connection and the secrets threatening to tear them apart, all while questioning what it means to truly want someone back.