ItYes, it would be on topic yes however i. I don't see why this would be a worry.
On the other hand, if the VN does have the answer, I fear that people will end up downvoting the question for lack of research - "you'd know this if you played the VN".
you are right that the Visual Novel takes a while to complete and there are multiple routes. VNDB lists it'sits length as
Very long (> 50 hours)
but iI don't know if this is for getting all the endings.
There's also no official translation as such the only (and legal) way to get it in englishEnglish is to buy the original Japanese game and download and install Amaterasu Translations's patch. Otherwise, otherwise if you can read japaneseJapanese you can skip the patch.
theseThese 2 things can sometimes be a barrier to some fans who will instead stick tooto the anime, as such no one should be downvoting you for not having played the Visual Novel. thisThis is like downvoting any anime question because you haven't read the manga it was based off from. alotA lot of the time (like Attack on TitanAttack on Titan, One PieceOne Piece, NarutoNaruto etc) it's because the anime is further back and not everyone has access to the manga legally (some people avoid the scanlations holding out for for official localization).
like wiseLikewise downvoting a Studio Ghibli Film question for not having read the original book the movie is from which isn't a well known-known fact, or Kantai CollectionKantai Collection questions because you didn't play the browser based-based game which accessaccesses originally was based off a lottery.
justJust because an anime is an adaptionadoption or was based fromon another media doesn't mean seenseeing that media is a requirement, so iI wouldn't worry too much. generallyGenerally, if something would be a lack of research, you'd ideally get a comment explaining how you didn't do enough research and you can find out for sure or not if your question is happy answered or not.