I wonder why this one has so few reviews, well...
Writing Quality: Perfect, except for the fact that you need to improve your synonymous, everything is very well done.
Stability of Updates: I can't really tell since I just caught up recently, so, this will be more like a wildcard.
Story Development: Alright, the main focus is harem but not the harem per se, but the process of conquering or 'stealing' girls, taking this as the medium of the story, I can say that it is pretty well done, since so far except for some that have to turn somehow annoying, I've liked most of them, there's a particular one that I felt like I was watching Oregairu all over again, that's the one I didn't like lmao. But well 5 stars here.
Character Design: I would give 10 stars here if I could. Every character has their own personality, they stick to that personality, they are no puppets and can make their own conclusions out of MC's actions. Some are cunning, some are dense but not idiots. And the development, you'd be surprised to know that MC is the one with most development in the novel. Truly 5 stars.
World Background: This is the point where the novel lags behind... And it is the fact that the world is only this: High School, Train Station and House... This is not a big issue, however it does give me a lot of insight about the future of this novel and that is:
This novel is probably gonna finish with MC saying: "Finally, got 'em all!!" and the novel is going to finish just there, no further development or growth or settlement or parenthood or whatever... Because the world is already so limited that I can foresee the moment he conquers them all, it is going to finish. Just like 'Sex Stories' from Erosaint.
My opinion: This novel is Gold, it will keep you sticked to the screen until you catch up, just like it did to me... A lot of people often misinterpret what NTR actually is, for me, it is this: MC's girl gets taken by some old geezer/black guy/a bastard in front of him, or close to him with the girl actually agreeing to it (if she doesn't it is rape)
*Spoilers ahead*
So, going from there, this story is the opposite. MC is taking people's girls, that's Netori, so before you read this, take into account the following:
So far, it hasn't happened, it was close to happening in the beginning but MC didn't even know the girl back then. No one of the MC's 'girls' (remember they aren't really his, he's stealing them, he's the actual bastard) have engaged in sexual acts with anyone else.
It hasn't gone farther than hugs but you will see many instances where the girls show romantic affection to somebody else (it is logic, remember their actual boyfriend is not the MC) and it is hinted they like them more than MC in many cases.
That being said, the Netori part of the novel isn't really that prominent, at least not compared to some others I've read. If you really ask me, the only one I actually consider Netori here, for those who've read and the author is Satsuki. The ones from middle school were hinted to be stolen but the process wasn't shown, in the teacher's case her husband isn't really mentioned much except for the fact that he exists same with the aunt as for Andou, the prick she likes also isn't really mentioned much.
In Satsuki and Sakuma's case, we have both their perspectives and also the fact that Satsuki 'was' very loyal to Sakuma.
So personally I can only classify Kana and Satsuki's stealing as Netori however I'm not complaining, I personally believe that's for the best. I like every single one of the girls introduced so far, except for Andou and Mori, but I don't like those for pricks in general.
Hope you finish this novel author. Greetings.