Sexy apprentice-witch Chipple dreams of becoming a good witch, but in order to achieve her goal, she first has to pass the Official Licensing Test! After bombing the written portion of the test for the third time in a row, Chipple only has one option left: ace the practical. So it's off to the mortal world to meet up with her test subject, one Tsukasa Tachibana, and make a "good impression" on him.

Sounds pretty easy, right? Not when it means teaming up with the one person Chipple really hates: Irene, a sultry siren who only passed the written part by using an unauthorized "oral exam" and a healthy dose of blackmail.

Suffice it to say that the roof of the test subject's house isn't the only thing that's going to get blown when these seductive sorceresses vie against each other to be the first to pass their test!