Soredemo Tsuma wo Aishiteru 2

This is a hentai unlike any other. It takes the themes you're used to seeing, like a woman who is at first unwilling, then very eager for extra marital affairs, and turns it on its head.

It also has one of the most at first confusing but ultimately thought provoking twists of any hentai I've ever seen.

Hentai gets predictable. You can predict the woman will like being r'd more than she likes what's happening in her bedroom. You can predict it will end badly for the husband. You can predict that an ugly bastard will have his way with her, laughing menacingly the entire ... time. But where it goes, and at what speed, I couldn't predict. There's more than 1 twist in this, and what you know is going to happen or can predict pales in comparison to what actually happens. I wasn't happy with it at first, but the more I thought about it, the more I saw it as pulling off something that hentai's generally don't even risk: Leaving you feeling sympathetic for the cheating wife, heart broken for the husband, and generally unclear as to who is responsible for the horrid circumstances they find themselves in.