I know that lately there's a Netorare fashion in Hentai, but this is the first time for me to see one.
The story resolves around a girl, her boyfriend, and a rapist.
It's somewhat sadistic towards the audience as the main character constantly suffers, but this is usual for Hentai. The unusual side is that the "main" character is not the girl, but her boyfriend.
It's extremely weird and strikes you the most odd in the first visible rape scene - we first see rape only when the guy himself witnesses it. It's not the first rape that happens, but oddly enough we always get cut out of the scenes before the rape occurs - probably to maintain the guy as a main character other than the girl.
While it's usual for Hentai to deal with sufferings and depression (which is fine, i just don't understand why there are hardly any other approaches to the genre), this hentai feels like the audience should get aroused by the main guy's sufferings rather than the girl's.
The final product is a sadistic, unpleasant piece of work that holds a lot of hate for man and woman alike but could've probably be much better with one of those two options: Spoiler
Because the story focuses on Ryouta's limited view, Miyu (and obviously Darade) come off as wicked and vicious and I don't recon she has to be. I agree with her that Ryouta has been a pussy as for how he dealt with the rape and I understand her disappointment. On the other hand her choice in Derada seems a bit stupid as well as it's obvious he doesn't care half as Ryouta about her. My advice is - make Miyu the main character and explain through her view why the hell she prefers Derade - the idea that she is attracted to his manliness is believable but this must be more in depth. We have to believe she loves him and not just cock hungry, and also there's no need for him to be that cruel to everyone.
The 2nd idea for this hentai to be better is adding a third episode in which Ryouta sets out for the greatest journeys in hentai history - to get his girl back. It starts with him going around fucking lots of girls and getting techniques of his own (might try them on Leina), revenging Derada by raping him before murder, and then when Miyu can't have him she will give Ryouta another chance and see how good he became, and get cock hungry for him. Because the truth is he sure had a lot to learn from Derade. Happy end!
Eventually it was an interesting watch and i recommend it, but be ready for a harsh story.