I’m about a 100 chapters in the Second Coming of Gluttony, but as for Shinmai Maou no Testament I’ll have to say no for that unfortunately — I’m not a fan of yuri action in a harem setting. The way I see it, harem members doing it with each other is just as much netorare/netorase as if they’re doing it with another dude. 

Feel free to recommend some other interesting novels you come across though, and I’m glad my list could be of some help. 

@Flaneur1917 Wait then doesn't Magika no Kenshi have yuri action? Maybe you don't mind a bit of yuri when the MC is present but in Shinmai some girls do it w/o him? In any case Shinmai does feel like a hentai with plot rather than a harem novel. At least it's better than DxD or HxH imo. I can't stand it when the battle scenes aren't done properly 

It does, but it’s not exactly what I’d call a good story — it’s mediocre at best. I don’t mean to diss you if you personally enjoyed it, but I don’t think that it’s good enough to be on this list. 

I’m actually currently reading the Second Coming of Gluttony — I’ll consider adding it to the list after I’ve finished it.

Based on what I’ve read so far, I wouldn’t rank it higher than my current no.1 or 2, but it would definitely displace my current no.4. 

I’ve only watched the anime adaptation of the series, and as far as I can remember, it doesn’t have a harem ending. If you can give me proof that it does, I’ll add it to the list.