By making all the characters insane.
Every single character has something wrong with them. The main character is a major MM, masochist/pain lover, there's a girl who think she's a god, another that has a fear of men, a pedophile, a mother and daughter duo that's obsessed with their brother/son, an evil genius...Basically EVERYONE in this anime is messed up on some level.
So the plot of this story is that our masochistic lead decides he hates his peculiar fetish and wants to get it fixed. So he goes to a special club run by a kami-dere that tries to make all wishes come true...In the most painful-I mean pleasuring way possible. In the process getting his own harem, and trying to keep his masochism a secret.
In general I think this was an awesome anime. The characters are all very three dimensional, the harem is given time to make sense, and the main character is so likable that I didn't mind the high school set up. There's also enough time for the harem to develop. You get the feeling he could get with any of the girls presented. And then you ship them...Hard.
The voice acting in the English and the Japanese are both solid. I personally prefer the English, but you're free to like whatever you like. The character designs are pretty standard, but the art is still lovely. All in all I highly recommend this anime, and think it's a shame that it won't get a second season on account of the novelist's death.
