Nidome no Yuusha wa Fukushuu no Michi o Warai Ayumu is a series in the vein of Tate no Yuusha and Kaifuku Jutsushi no Yarinaoshi, just focused almost entirely on gruesome vengeance with not much in the way of sexual elements. There is a harem situation, but it’s a bit unique in that all the girls are some flavor of yandere.
Issues would be the not quite universal nature of the initial time reset (if others kept their memories it kind of undermines the whole premise), the vast majority of the third novel (which is mostly flashback), overuse of laughter-related onomatopoeia, and the cliffhanger ending of the fifth novel. It goes in an extremely unexpected direction there in one of the worst ways possible. Then again, it certainly hasn’t shied from torturing its protagonists alongside their enemies… so perhaps that isn’t quite as random as it seems.
Either way, it looks like the sixth novel will either make or break the series.
Speaking of cliffhangers, the eighth Kuitsume Youhei novel also happens to end on one, albeit one far less severe. It also feels a lot shorter than previous entries and honestly doesn’t really accomplish/add much of anything.
If the next book continues that trend I’m probably going to end up dropping it.