[5] To produce more plentiful and powerful Star Children, Itsuki must increase his intimacy with the twelve maidens.

[3] On his high school graduation day, Itsuki's cousin, Mahiru, tells him that she's pregnant.

In this land, "Impurities" have been causing a disturbance to the Stars, ultimately plunging Granvania into chaos and disorder.

On July 4, 2019, it was announced that the game would receive an English release on November 5, 2019 for the PlayStation 4 and Steam, under the title Conception Plus: Maidens of the Twelve Stars.

[18] On May 4, 2018, an anime television series produced by Gonzo was announced, and aired from October 10 to December 26, 2018 on SUN TV, BS11, and Tokyo MX.

[19][d] The series was directed by Keitaro Motonaga, with Yūko Kakihara writing the screenplay, Masato Kōda composing the music, and Yosuke Okuda adapting Shinichiro Otsuka's character designs for animation.