聖隷嬢和歌子（Sei Reijou Wakako）

Her mind is sadistic, but her body’s that of a pure masochist!

Saint Martinus Academy.
Even though a rich heiress, Suou Wakako chooses to live as a sex slave to save her family’s business. One day, she gets called to the director’s office and hears a shocking truth. The Kishi family head has his sons compete in pimping skills, and the best one gets to be the next heir. Wakako is picked as their training target.

Will she endure unhinged training from her hated upperclassman, Kyouji Kishi? Or will she end up dominating his innocent, germaphobe younger brother Jun?

Wakako’s life as a trainee kicks off with totally different types of situations.
In the gym storage room, the library, even the staff room—Kyouji doesn’t care about time or place.
He toys with Wakako by snapping pics of her with her face twisted in exstasy.

Jun, who used to be so pure, wakes up to the pleasure Wakako’s wicked mouth, and turns into a total blowjob addict.
So who’ll end up being master of slave-in-training Wakako?

This proud princess is getting broken down—body and soul—into a bitch in heat!

[Translated from the official website]