Erotic fiction.
The story should be paramount.
No matter how well written, if the story is pants, it's pants. A successful story should poke at the readers emotions at some level, whether that be fear, anger, humour, or excitement, otherwise they may as well be reading toilet paper.
You want to tell me a story?
Then take me by the hand, tell me what I'm seeing?, What's happening? What am I hearing?
Don't tell me how I should feel, just relate to me what my ears and eyes cannot see.
Or in the specific case of a Visual novel, what I cannot hear.
Don't be descriptive, I can already see and visualize what is in front of me, just tell me what they are saying, or doing, Guide me through these images without pulling me, nor holding me back.
At journeys end, did we walk a monotonous straight line? Or did we take little excursions, maybe even skipping, running or maybe falling over at some point?
If it was a sexual journey, did I get aroused? If it was a comical trip, did I laugh?
Either way, if my palms are clammy for forgetfulness that we are still holding hands, then it was a good journey.
If I had to break contact to reach for the space-bar, then you lost me i'm afraid.
Fap VN
Eroticism should be paramount.
You want to tell me a story?
Then point me in the direction, because i'm already using my hand.
Whisper occasionally into my ear, don't shout, just prod my thought processes.
Gently flow information to enhance what I'm seeing.
Don't repeat what you have just told me, I already know she has a tight pussy.
Don't show me the same scenario repeatedly, when there thousands of situations that have not yet been explored.
At journeys end (if we made it that far), Do I feel satisfied? Was it a worthwhile trip?
Did you fuck my head; the way I fucked those pixels?
If you do not wish to shake my hand afterwards, then surely that would be a success?
If we spent too long between destinations and the 'space-bar cab company®' was used, then i'm afraid I'd want reimbursement.