On the surface, Nana Chigusa appears to be a typical honor student, loved by the student council and her peers, and surrounded by admirers and friends. But deep down, even good girls need a way to blow off a little steam and de-stress, and for Nana, that means secretive, intense S&M sessions with Kaoru, a well-known pervert and her childhood friend. What experiences and pleasures await this unlikely pair?
Two short & mindless OVAs about sexual deviations. I didn't like either of them, but if you enjoyed the one, you should also check the other.
Two mediocre OVAs from great manga about relationships as seen through sexual deviance. Both leave all the strength and depth of the manga for cheap ecchi thrills. If that's what you're looking for, these do alright.
Asuka, Mai, Nana, Riona and Yuki have sexy secrets that they'd like to share. Mai explains the lines and curvatures of the legs when a woman crouches down. Nana works as a maid but believes someone is watching her. Riona becomes excited when she wears the color red, and demonstrates different ways a woman can sit. Yuki wears skimpy outfits for her lover. And finally, Asuka is frequently kept after at the hospital to take part in a sexy roleplay with a female doctor.
If you're looking for a mindless, short OVA that exists solely for fanservice (and is quite adult, nonetheless), these two are a good fit.