Occultic;Nine is an Japanese visual novel that is based on a light novel of the same name. The game is descibed as a "Paranormal Science Novel". The story follows nine idiosyncratic individuals. Little incongruities that occur around these nine eventually lead to a larger, unimaginable event that may alter what is considered common sense in this world. Despite being by the same makers and sharing a similar naming scheme, Occultic;Nine is not a part of 5pb's Science Adventure series of adventure games.