Bishoujo Mangekyou -Kami ga Tsukuritamouta Shoujo-tachi-

In an unknown era. Long after humanity's golden age crumbled to dust, and eons rolled by like waves... In a realm where the horizon bled into oblivion, a solitary scientist, the last of his kind, dwelled within a tower. Marooned in this desolate expanse, his heart yearned for companionship. Armed with arcane knowledge from a long-lost civilization, he wielded technology akin to sorcery and finally created the ideal maid robot into existence. [Translated from the official website]