Conception (Original Japanese Version)

High school student Yuge Itsuki is sent off to the magical world of Granvania with his childhood friend Konatsuki Mahiru. Itsuki was summoned to save this world, but to accomplish this mission he must perform Love Rituals?!

Itsuki and Mahiru performed their first Love Ritual and a Star Child was born! Later, Itsuki starts to bond with one of the maidens, Ruka, at the cherry blossom viewing welcome party.

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 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. She seems to be in a slump, so Itsuki asks her out on a date as a change of pace.

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 maidens.

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. Despite being plagued by guilt, Itsuki helps out at the bakery where Collette works.

Collette was trying to recreate her grandfather's secret bread recipe in order to revive the dying bakery. Itsuki helps out, and they make many variations based on the clues left by her grandfather.

Mana, the protector fairy for Visitor Itsuki, plans the Ultimate Love Ritual to encourage maidens who haven't yet performed Love Rituals. It is supposedly an ultimate heavenly experience, but only the maiden who catches Itsuki's heart can be his partner.

Itsuki finds out about the Stardust Labyrinths where the Impurity Lords dwell, as well as the 13th labyrinth and the existence of the 13th maiden. He sets out to find the maiden, however the maiden might actually be a boy?!

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. However, Itsuki fails to notice, and continues his search.

Itsuki is shocked when he learns the true secret behind the thirteenth phantom.

The Ritual of the Great Star Ward is set in motion, but can Mana go through with it? Isn't there another way?!