I'm not usually a hentai watcher, but I do want to write a review for this since I found this particularly interesting for a first episode.
Story: I give it a five because simply you shouldn't expect much of a story in a hentai, because well it... It should be focused on having lots of sex. The story is really weird, and goes straight into sex, So don't watch this if you are expecting a story.
Art: I gave it an 8, I thought it was decent to keep watching and the animation was pretty smooth, plus the boobs look nice..
Sound: Pretty normal, at the sex scenes it was sort of displeasing at certain points, but overall it's okay.
Character: The characters are pretty good at the beginning, it had a lot of potential, but as it progressed, it's just your typical hentai. Refer to what I said in the story
Enjoyment: I liked it, the girls were pretty interesting. I would like to see more.
Overall: 7. If you just want straight up sex and minimal story, I would recommend it. If you want a story with your hentai.. You probably best off watching ecchi. read more