Mana, the protector fairy for Visitor Itsuki, plans the "Ultimate Love Ritual" to encourage maidens who have yet to perform "Love Rituals." It is supposedly an ultimate heavenly experience, but only a single maiden who managed to catch Itsuki's heart can be his partner.
The twelve maidens looking 
for the Ultimate Love Ritual
العذراوات الاثنتا عشر الباحثات
عن طقوس الحبّ المُطلقة
Die zwölf Priesterinnen sind total rattig
auf das Nonplusultra-Liebesritual
Las 12 doncellas
buscan el Mayor Ritual de Amor
Las 12 doncellas
aspiran al Mayor Ritual de Amor
La bataille romantique
pour déterminer
Punteranno a compiere con lui 
il Rito d'Amore Definitivo
12 sacerdotisas à procura
do Ritual Definitivo dos Amantes
Ради Совершенного Любовного ритуала 
девы созвездий