Anime Crossover: Starting with Summoning Beautiful Girl Familiars

Qing Yu is summoned by Louise to the world of The Familiar of Zero, where he binds to a Familiar-Summoning System. By reversing the contract, he makes Louise his familiar.

This world has been invaded by monsters.

Qing Yu has no choice but to use the System to summon powerful familiars to fight the monsters and liberate the world. They just happen to be beautiful girls.

At the same time, as his intimacy with his familiars grows, Qing Yu can gain some of their abilities.

So, for the first stage, why do the sky monster Tias and the sea monster Steeltooth Shark seem so familiar?

Isn't Electric-type super effective against Flying and Water types? Then the little orange-haired girl he summoned...

"We sacrificed the entire Holy Knight Order and tens of thousands of soldiers without causing the monsters any real damage. Are you taking this little girl along to get her killed?"

Who knows? She took it out with one Railgun.

"The monster Rios, which turned over a hundred cities into a hell of molten lava, is invincible..."

Roxy: "I'd say it's about one percent as strong as a trial for a Water Saint-class mage."

"The frozen wastelands belong to Akusia..."

Megumin: "Explosion!"

This novel and its characters are entirely fictional. Any resemblance is purely coincidental. Do not imitate.