Itsuki YĆ«ge is a high school student who finds out on the day of his graduation ceremony that his cousin and childhood friend Mahiru is pregnant. Immediately afterward, Itsuki and Mahiru are taken to a magical world called Granvania, which is currently being invaded by monsters. The only people who can fight and exorcise the monsters are the “Star Children,” and the Star Children can only be produced by the 12 “Star Maidens.” In order to defeat the monsters and return to his own world, Itsuki must father the Star Children with the Maidens. – ANN
Streaming: Crunchyroll and Funimation
Episodes: 12
Source: Game
Episode Summary: Itsuki’s cousin Mahiru has some news for him, and it’s a surprise to them both: Mahiru is pregnant, though having never had intercourse the mechanism is truly a mystery. As she reveals the news, both the teens are drawn unwillingly into a magic porthole that connects to another world. After battling with a demon, they’re met by someone from the royal court who escorts them them to the castle.
As the King himself explains, Itsuki was brought to their world to be its savior, and Mahiru is one of twelve zodiac priestesses who play an important role in the world’s survival. It’s not Itsuki himself that’s destined to purify the world, but instead the offspring he creates with each of the priestesses have the power to save them all. As a relatively innocent guy, this weighty task seems somewhat daunting though perhaps a little fun, too. When his potential coupling with Mahiru is set to become a reality, it’s then that Itsuki is under the gun to prove what kind of man he is.