The premise is so grotesque it circles back to funny: your cousin is pregnant, a magical world needs you to impregnate twelve shrine maidens to save it, and everyone acts like this is normal. The show commits to the bit hard enough that it stops being offensive and starts being absurdist camp. By episode six, you're not watching a harem anime, you're watching a show aware it's ridiculous, leaning in, and somehow landing jokes about the sheer audacity of what it's asking its protagonist to do.
Itsuki's graduation day takes a surreal turn when he learns his childhood friend Mahiru is pregnant, only to be whisked away moments later to Granvania, a fantasy kingdom under siege by an endless monster invasion. The kingdom's only hope lies with the "star children," rare warriors born from sacred unions between their maidens and a chosen human. As the unlikely candidate selected for this responsibility, Itsuki must form bonds with twelve constellation priestesses and conceive offspring with each one to create the champions needed to save Granvania from destruction. What begins as an absurd premise becomes genuinely engaging as Itsuki navigates the weight of his impossible task alongside developing real connections with the maidens. Each priestess carries her own struggles and personality, transforming what could be shallow into something with actual emotional stakes. The action sequences blend satisfying combat against grotesque monsters with quieter character moments that give the story heart. Viewers seeking a fantasy adventure with romance woven throughout will find something that balances humor, danger, and unexpected tenderness as Itsuki discovers that saving a world means understanding the people who inhabit it.