Like I said, I don't disagree per se, I only wanted to add that mystery ntr with oblivious mc requires you to not 100% "play as the mc", but have a more fuzzy pov where you play around with the mc while at the same time knowing things he doesn't, when he's oblivious to the corruption of the girls around him.
Incidentally, a hot mystery ntr story (where pieces of evidences are around for the reader but NOT the mc, like moans, bed creaking, used condoms, etc) is probably the hottest kind of ntr for me, especially when the girl is strong willed and forced into it before becoming secretly corrupted.
If you like adventures how about this long Isekai one.
少女冒険者パーティを守りきれない
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It looks nice but is it ntr as in unexpected/abnormal or the kind where "all girls are mandated to be raped by law" or "it's normal to be fucked randomly" stuff, which is the most boring kind of way to make ntr to me ?
Never been into this stuff.
->
"In this world, violence, power, and even rape using chemicals and magic are rampant, erotic traps are set off when you enter a dungeon, and monsters reproduce by using the stomachs of human women."
NTR for me hits harder if the ntrd guy is actually competent but still fails.
I agree with that, but more than competent, I like mc who are "good" in general.
The best way to make a netorare story unnapealing to me is to make the mc a total psycho or the hyper jealous type (the ones doubting their girlfriend all the time). I like way more the trusting dense mc who didn't make any obvious mistake.
Incidentally I don't like netori to be the insane obvious bully either, but to be the "hiding his game" type, befriending the mc while secretly training the girls.