My overall rating of the OVA of 11eyes is based off of my reaction to the comedy in the OVA. The personalities of the characters remained the same, except for Kakeru, as he seemed to be more intimate with Yuka, even though he is completely ignorant of those things. The art was the same and I liked the style of the drawings. Let's be real here though, there was no story. That story was completely made up and this OVA had no purpose. There were a lot of witty lines said in this OVA and I couldn't stop laughing at the sheer awkwardness of the OVA. That is why my rating is an 8, because it made me laugh. I couldn't get past some of the weird parts without laughing because I couldn't believe that it what I was seeing was apart of the 11eyes franchise.
SPOILER
For example, Kukuri could only say inappropriate things and draw sexual diagrams. When Misuzu summoned her sword, a vibrator appeared instead. At this moment, I was on the floor, dying of laughter. It made me think, 'What the hell were the writers thinking?'
Anyway, if you came to enjoy a relevant story that is set after the last episode, you came to the wrong place because there is no story. If you came just for the sexual content, then this one is right up your alley (no pun intended).