Marshmallow★Imouto★Succubus★

Pre-review TLDR:
A pretty solid 1st episode. Easily recommendable to anyone what with it being vanilla and generally lighthearted as well. It's worth checking out if you're into succubi, vanilla, and/or incest with an imouto that's not petite, which is always welcome to me.

The good:

* The art and animation. The animation is pretty clean all throughout and consistently good. The scenes were animated pretty well even if they're really not much, what with the show being vanilla and all, but they're still pretty good.

* The plot. I've "read" the source material for this last year and most of the stuff i've wondered about the plot ... only made sense to me now after seeing the hentai anime adaptation, and surprisingly it's pretty good and the mystery factor is pretty intriguing too.

* The character designs. I guess it's not the best out there since the 2(or should I say 3) main girls, the MCs imouto and his female classmate, are pretty standard looking for the most part. It's not until they transform into their succubi state that i can really say that their design was really well done.

The bad:

* Hmmmm. Can't really think of any at this time.

Things that might turn you off:

Kyonyuu
Succubi
Vanilla

Final Verdict:

I'll say this one was a pretty solid release so far. Episode 1 ends on a pretty nice cliffhanger that just makes thing a bit more interesting and prevents you from getting bored of the seemingly uber-generic plot, but i'm not going to expect too much of it. The sexy succubi designs are enough to keep me glued to my seat even if i'm not the biggest fan of vanilla. Again, easily recommendable to anyone who watches hentai, or maybe even as a first and i'd say it's worth checking out for any of the veteran watchers out there, even if it is pretty vanilla.

Quite honestly one of the worst hentai I've seen.
The protagonist's father is gone for work and the protagonist stays home with his horribly designed sister. Apparently his sister is a semen-hungry succubus who wants to have sex with him. Good so far?

THE ART IS AWFUL. I read in another review that a reason you might not like it is because of the succubus or the big boobs. No, no, no! Brandish had a loli succubus that was plenty a gifted and she was pretty cute, in this case there's just something wrong with the design! What is supposed to be a younger sister is designed ... with the face of an adult woman with lots of make-up (and obviously disproportionate chest size) stack to a relatively tiny body. The result is pure ugly to look at.

And don't get me started on the "succubus" parts. Quite honestly this is the first time I've seen horns on girls in anime that look SO bad. The wings are also a joke (way too badly designed as well), to the point that they remind IN-ANIME of a lazy cosplay. And to top it all off for some reason both the wings and the tail are a stupid purple-black color that just looks fake even by anime standards.

And to top it all off: The voice acting by the sister is horrendous. How can I say this... It's like an adult trying to mimic the voice of a child. "But that happens in all anime." you will say. Yes, I know, that's why it's so hard to describe. The whole thing just sounds WRONG here. It reminds me of when adult women in anime purposely try to sound teasing, except in this case instead of 1 or 2 lines it's the entire episode. It sounds FAKE.

Pros:
-...I got nothing.
Cons:
-Good god the art is awful.
-The voice acting by the sister is really annoying.
-They managed to make a non-tsundere little sister annoying.

Stay away.