Synopsis
On the day of his high school graduation, Itsuki is told by his cousin Mahiru that she is pregnant. Without warning, the two are drawn through a shining portal into the realm of Granvania. In this world, "Impurities" run rampant by disrupting the Stars, causing chaos across the land. It is revealed that Itsuki is destined to encounter the "Star Maidens" and is considered Granvania's final hope to bring back balance. He is entrusted with the vital duty of producing "Star Children" to fight the Impurities. Succeeding in this mission might hold the key to their return home.
