If you saw this OVA without first reading the manga, then you're missing a lot and it won't make much sense to you, I'm afraid. Now, since the manga has yet to be licensed in the US, then that means most anyone whi saw the cover would think it just some hentai and either put it back down and passed it by or were greatly dissapointed when they took it home and found out it wasn't what it looked like. True Misaki is a dominatrix, but the story mostly uses that for comedic effect. The rest of the time it leads you through one horror mystery to another. Pretty good.