If there is one ghost in Japan whose name still inspires fear, respect, and unease, it is Oiwa. The Oiwa Ghost Story , known formally as Yotsuya Kaidan , is not just a tale of revenge. It is the foundation of Japanese psychological horror — a story where guilt is more terrifying than violence, and where the ghost does not scream, but waits. More than two centuries after it was first told, Oiwa continues to haunt Japanese theater, cinema, and imagination. Oiwa Ghost Story The