The game is a violent detective visual novel where recent murder victims match the story of an urban legend in the area. 6 cases that may or may not be linked are investigated throughout the story. It was released by Nippon Ichi Software in 2014 for the PlayStaion 3 and Vita. The game got the CERO Z rating in Japan for it's disturbing visuals and story, Equivalent to an AO, sometimes M, rating in North America.

The game was also released on mobile devices in a split-up format in South Korea. The story was split into 6 separate games that covered the various cases from the original game. In 2018 the first mobile game was translated and released in English but was not well received and the other 5 were put on hold and not planned for release as of 2019.