It's main redeeming factor is it's artwork. Not so much the animations, but how the characters are drawn. It has the distinct PoRO art style, but unfortunately the sex poses don't change all too much. It's equivalent to just swapping cameras angles of the same scene. This drags out the scenes and swiftly becomes boring.
While the story isn't the largest focal point for hentai, the corny plot is forced into the mix to try and make the anime seem deep. Unfortunately, watching this seems like you are thrown into the middle of the story. While this isn't bad, the story does not explain how it got there. This ends up confusing the hell out of viewers, distracting from the fap session of mediocre animations.
The story impacts the experience due to how it is used to justify the characters and their actions. The character development is absolutely atrocious as it seemingly cockblocks a main character for seemingly no reason. In fact, all of the conflicts seem like they shouldn't have even existed due to a severe lack of context.
In the end, Reunion is a below average hentai. As bad as the story is, its artwork is nice enough for it not to be total garbage. However, since it is not exceptional in that area, it falls below even your average hentai due to how pathetic the plot is. When the plot gets in the way of the 'plot,' you know there is an issue.
