Tomoyuki I enjoyed Trial Marriage for a long time, and then kept reading it for far to long. I think I made it into the 700's and it had been a LONG time since I had been getting annoyed with it.

What turns me off a novel are many of the things mentioned before, especially repetition and to many pointless sex scenes.
Sex is great and some authors have a real talent for writing the scene, but if it's not helping the story it is hindering it. I don't need to stand in the room every time the couple gets hot and bothered.
Pointless chapters in general. Much like Trial Marriage and several others I have picked up and dropped, when your story is told, end the book. Throwing in reskinned subplots and characters for 200 extra chapters in the middle of the primary story is infuriating.
As many already mentioned, toxic relationships that are 'all good'. I don't mind growth, I understand the redemption of a character. But I need to see it happen. Don't show me a guy that beats his girlfriend(boyfriend) or rapes her and then 200 chapters later because SHE(or he for BL) had some growth they are all good. I am ok with seeing a character do a terrible thing and realize it, sit with it, suffer from it, and crawl his/her way out of the grime of it. Then, and only then I might be cool with the idea that they can work through it and find a 'happy ending'
Harem without reason. I don't hate the harem idea entirely, I think it is entirely possible to have a healthy and loving relationship with multiple people. But most of them here are just a chance for the ML to get to have lots of sex with lots of different women. But with a reason, and proper development it can be an interesting read. Especially if he(or she) isn't a dude bro about it.
Advertising mid chapter. If an author tells me to check out there other book in the middle of the chapter instead of the author note section, I am closing that book and immediately removing from my library no matter how much I might like the story. You just kicked me out of your own story for a commercial about you, nah I paid for commercial free.
Lack of description or world building. You don't have to explain every blade of grass or go Nathaniel Hawthorne and his door on me, but at least give me an idea of where I am. And don't tell me what I am supposed to feel or see in little author notes throughout the story
EX: The buildings were tall, with roofs that curved inward. (like pagodas in china.) Pink flowers fell from the trees (think cherry blossoms)
EX: He slapped her. She was shocked. (grr I was so mad when he did this...)

There are more but I realize how long this had gotten, I apologize, though I am still posting it. :)

grimreaper906 Well some of them are not only about incest. I love when they have a baby sister where the mc can flex and spoil her.

I don't like female mc and BL. I have nothing against them but I can't immersed as much in the story.

My biggest turn off for any novel or fanfic is bad grammar, I despise bad grammar. I understand if someone makes one or two small spelling errors, but some stories are so bad it feels like they had a stroke trying to write it. Or it’s usually the reverse and I feel like I’m getting a stroke trying to understand what they wrote.

    Divas I Have a review system and whatever I like or dislike about your work I will be very Candid and Honest about are you fine with this

      Mostly abusive love, were one gives all his/her love to another and the other just for the other to keep rejecting, until in the end something happens and bla bla bla, they get together and live happily ever after. oh! and also Smutty stories with no feelings, that completely turns me off, i just bolt from the novel.

        Umm, I have one question, didn't all of you pay attention to the tag? Because most of the r18+ novels have their tags. Be it harem, incest, or sxescene, gore whatever it is on it. Sometimes there is also a warning in the description.

        In my opinion, consistency in the story/character is crucial. I'd like to explain it but it's going to be long text. So, I'll just sum it up. In an example, a smart MC should act to know how it supposedly means smart. If not, it would be a cliché. I'm not saying I hate clichés, but too much cliché is not good. It's better to add it with an element of surprise or something related with 'out of mc's control'.
        Sometimes, I imagine a spineless author making a smart MC. Quite fascinating indeed. Well, more precisely a lazy author. Working hard to irritate the readers.

          SgtMaj_Tate for me it's especially when they keep changing the He and She for a character. In Chinese novels have difficulties to determine if the character is a boy or a girl.

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