Otogirisou is an adventure game entirely in Japanese where texts follow one another on still or very little animated images. The story begins when the hero stops his car on a road along a gloomy forest in the middle of nowhere. In the pouring rain, with a thunderstorm in the air, he enters a strange manor house which seems uninhabited, although strange noises can be heard... Suspense and horror are the order of the day in this game, which sometimes interrupts its narrative to offer the player some choices.