15% is still quite a lot in an adult game. Getting hit on in games by dudes is not very appealing, even futa/trans content is better than that (not a fan of that either but still). Would be better if you could completely disable it like you can with NTR here apparently (also don't like NTR).
The overall story and game-play do sound interesting though & I like the artstyle so maybe I'll still try it out. Is there enough good vanilla content? With gay, lesbian, futa and NTR stuff it seeems like there is little room for that...
The game has a lot of content so even if you don't like a large swath of it there is still a lot to enjoy; It was worth it for me and I don't enjoy gay content or NTR either. I do like Lesbian content- but there is almost no non-NTR Lesbian content anyway. I probably only enjoy 50-60% of the sexual content in the game.
The story being really good helps a lot.
As to your question; I guess that rather depends on what your definition of Vanilla is. If you're talking proper Vanilla- like just between the wife and husband it is absolutely not worth it. Its like 5-10% of the game.
If you are okay with the husband cheating in hetero-situations it opens up maybe 40% of the games content.
If you are okay with dub-con / non con that opens up another 5%
The wife with other men is maybe 5%
5% Voyeur
20% is NTR.
Lastly there are some poly routes- but those are mostly MMF / MFutaF at this point. One MFF scene.
So, I dunno- it seems thin when you look at it in terms of percentages- but like; still a ton of content. Half of the art is like 700 images. I'd try the game out and make your own judgement call and after you do let me know what you think
