Rena Aiha is a magical girl. One day, she and her partner, the cool and beautiful Fubuki, are summoned to a magic school. There are thirteen magical girls in the school. They are ordered to find out the lie of the witch who is only one of them by "voting" and "execute" her.

"Please make us shine brightly!" A few years after making promises with three girls in his childhood days. Having refrained from taking his high school entrance exam, Yuto Hayashizaki was invited by the girl that used to stand on the same stage as him, Akari, to come to tour the grandiose Entertainment school. There, he not only came across the legendary Idol, but also had a destined reunion with his childhood friends?! The tale of three fated childhood girls, and the school of pinnacle "Production" now begins!