In order to defeat Impurities that turned out to be far stronger than expected, Itsuki is pressured to perform a "Double Love Ritual" with two maidens at the same time. It is said to produce powerful Star Children, but it has never been performed before. Itsuki steps into uncharted territory, following the lead of onee-san maidens Reone and Falun.
It is a holy ritual for giving 
birth to Star Children.
.إنها طقوس مُقدّسة بغرض إنجاب أطفال النجوم
Un ritual sagrado para dar a luz
a los Hijos de las Estrellas.
Un ritual sagrado para dar a luz
a los Hijos de las Estrellas.
une cérémonie sacrée
pour concevoir les Enfants étoilés.
Una sacra cerimonia
per dare vita a un Figlio delle Stelle.
É uma cerimônia sagrada para dar
à luz as crianças das constelações.
Это священное действо 
для зачатия Звёздных детей.