Conception follows Itsuki, a high school graduate unexpectedly thrust into a fantastical world called Granvania after his cousin reveals she's pregnant.
Granvania is plagued by "Impurities" disrupting the cosmic balance and throwing the land into chaos.
Itsuki discovers he's destined to unite with "Star Maidens" to create "Star Children," powerful beings needed to fight the Impurities and restore order.
His mission is crucial: defeat the Impurities and potentially find a way back home.