The most similar thing to Sion Sono's Minna! ESPer Dayo!, also based on a manga.

Doesn't get as hentai as that one though as most of the actresses are younger. This one feels more childish with very stupid jokes. For example, a boy sees a girl taking a piss and the girl demands the boy to take a piss in front of her as revenge (it escalates quickly).

All characters are funny and have their own personalities, with the blond girl beeing my favourite one. This miniseries has 9 episodes in total with 25 minutes each, which makes it very easy to watch.