Conception  

CONCEPTION 俺の子供を産んでくれ!, Conception: Ore no Kodomo o Unde Kure!, コンセプション 俺の子供を産んでくれ!, 为我而生, CONCEPTION（コンセプション）, Conception: Ore no Kodomo wo Undekure!, コンセプション

On his high school graduation day, Mahiru tells Itsuki that she's pregnant. Suddenly, a portal of light appears and transports them into the realm of Granvania. In this land, "Impurities" have been causing turmoil among the Stars, leading to chaos and disorder. As it turns out, Itsuki is destined to meet with the "Star Maidens," and has been tasked with creating "Star Children" to combat these impurities. If he doesn't complete this mission, he may never be able to return home.