A single episode that treats Hell's customer service line like a real job. The horror doesn't come from demons or damnation, it comes from watching someone process the paperwork of human suffering, one phone call at a time. This is what happens when you build an entire supernatural world around bureaucracy instead of spectacle, and the OVA format means there's no room to waste a single frame on anything but the weight of it.

Tetsushi, Ryouchin and Shiina are three kids with a reputation nobody wants to cross. One day the trio walks into Jigokudou, a shop said to be a doorway to Hell, run by an unsettling keeper. After hearing a tale from him, they accept a magic token and go looking for the uneasy ghost of a murdered woman, hoping to set her free. That search is only the first step into a life of supernatural encounters. The single-episode horror fantasy OVA adapts Kouzuki Hinowa's long-running novel series.