A girl dies on her way to school and wakes up in Hell's classroom. That's the setup, but the real story is watching her choose to stay, not because she has to, but because the demons around her stopped being monsters the second she treated them like classmates. The animation moves with a kind of fluid weirdness that makes every scene feel like it's bending the rules of what a school comedy is allowed to be, and by the time Rinne realizes she's found something in Hell that the living world never gave her, you understand why she'd hesitate to leave.
Amagane Rinne rushes to school one morning and gets caught in a fatal accident. When she wakes up, she's not in a hospital or the afterlife she expects. Instead, she finds herself enrolled in a chaotic educational institution populated entirely by demons and supernatural creatures. Hell's school system operates with absurd rules and comedic dysfunction that would horrify any normal student, yet Rinne discovers she's stuck here whether she likes it or not. Her initial desperation to escape slowly transforms as she befriends her bizarre classmates. Each demon has their own personality quirks and tragic backstory, revealing that Hell's residents are far more complex than scary. Through shared laughter, genuine support, and increasingly strange adventures, Rinne realizes she's formed real connections in this twisted place. The film balances horror aesthetics with unexpected warmth, shifting between comedic chaos and sincere character moments that redefine what friendship means. It's a story about belonging in the last place you'd expect to find it.