I feel a bit dirty rating this one, it is like rating a porno.
There is very little going on in this film, it is your typical "female training" pink flick, which I can forgive if there is a decent story, but here we have nothing. Just one stylized sex scene after the other.
In its favor I will say that it is very well shot, the director does a great job of getting as much eroticism out of the flick while still staying within the guidelines of Japanese censorship law for the majority of the scenes
This one may have had the sex down, but it has very little else going on, with limitless options in the pink film genre, this one should be overlooked.
My biggest take away from this film is that of a valuable lesson. You don't have sex in a wheelchair on the edge of a cliff.