Conception episodes

High school student Yuge Itsuki was sent off to a strange parallel world with his childhood friend Konatsuki Mahiru.

Itsuki and Mahiru performed their first Love Ritual. A "Star Child" that will be able to cleanse the Impurity was born, as they bonded through physical contact.

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.

Itsuki bonds with Yuzuha, Maiden of Pisces. She works as a painter, but uses a coffin as bed for some reason, and drew what she saw in dreams while sleeping inside it.

A beach tour was organized to deepen Itsuki's bond with the maidens. However, that information was leaked to the biggest playboy in the academy, Seiya, who followed them in an attempt to seduce the…

Mana recommends Collette, Maiden of Aquarius, to Itsuki for the next "Love Ritual." However, Itsuki becomes hesitant of laying hands on a girl who is so pure and innocent.

Collette was trying to recreate her grandfather's secret "Happy Bread" to gather customers, and revive the dying bakery.

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…

Itsuki finds out that in addition to Stardust Labyrinths where the "Impurity Lords" dwell, there is also the 13th labyrinth, as well as the existence of the 13th maiden.

The 13th maiden was not male... A girl claiming to be the 13th maiden shows up before Itsuki. She sets out to confess her love while wearing an outlandish '80s outfit.