The title of this visual novel is a parody, takeoff, joke on, or homage to that of a preexisting well-known work or fiction. This category can also include those with logos or designs that are clearly meant to parody something else.

"Parody" in this case doesn't have anything to do with the Japanese usage of the word, such as to describe doujinshi; it's similar to Western porn parody titles, and like those the content may have little or nothing to do with the work being referred to.