An 'undeclared visual novel' could refer to a visual novel that hasn't been officially announced or made public in some way. Maybe it's a project in development that the developers haven't formally declared yet.
One way to identify an undeclared visual novel is to examine the gameplay mechanics. If the majority of the gameplay involves reading dialogues, making choices that affect the story, and there are static or animated visuals throughout, it might be an undeclared visual novel. Also, check if the game has a branching storyline, which is a common feature in visual novels. If it has all these elements but isn't advertised as a visual novel, then it could be what we call an 'undeclared visual novel'.
One main aspect is the truth factor. Journalism is bound by facts, while fiction can be a creation of the imagination. Journalism aims to report real - world events accurately, and any deviation from truth is a serious issue. Fiction, on the other hand, thrives on creating fictional worlds and characters. Another aspect is the purpose. Journalism informs the public about current events, politics, society, etc., while fiction often aims to entertain, evoke emotions or make people think in a more creative and abstract way. Also, the style of writing differs. Journalism uses a more straightforward, objective style, while fiction can be highly stylized and subjective.
The war between journalism and fiction has a profound impact on the media landscape. On one hand, it enriches the media offerings. The contrast between the two forms makes the overall media environment more dynamic. However, it also poses challenges. The blurring of lines between them, such as when fictional elements are introduced into journalism (e.g., in some forms of tabloid journalism) or when journalistic techniques are used in fiction for a sense of realism, can lead to a lack of trust. This lack of trust can spread across the media landscape, affecting how people consume all types of media, from news to novels.
No, it's not a popular visual novel. I've rarely heard it mentioned in mainstream discussions about visual novels. It seems to be a relatively unknown or niche title.