The Familiar of Zero F

Queen Henrietta has ordered everyone to Romalia to meet the Pope. Once everyone has gathered, he reveals a secret involving void mages and the fate of the world.

As she and Saito stroll a bazaar in the city of Aquileia, Louise is tricked and gravely injured by a mysterious girl.

King Joseph has developed a powerful weapon, but needs the help of a void mage to make it unstoppable. Which of the three mages will become his unfortunate guinea pig?

Louise and Saito are searching for their Mansion. Meanwhile, Tabitha receives the medicine that will heal her mother, and Queen Henrietta awards Saito an unexpected item.

Louise's sister, Eleanor, visits she and Saito. She strongly implies that Saito, and Louise by extension, is ruining the House of La Valliere.

Saito decides it's just the right time to have a hot springs party. However, an uninvited guest appears and shocks the crowd.

The elemental siblings have returned, catching Saito and Louise off guard. While the battle rages on, a group of familiar elves arrive and steal Tiffania away.

With the Ostland flying at max power to the elven land, Saito and Tiffania are put before the council. An unfortunate incident seals Kaito's fate.

The Ostland makes it to Reynald, where Tabitha has offered to fix the ship and lets them know she's taking the crown. Louise becomes jealous of Saito's time with Tiffania.

Saito, Louise, and Tiffania have been summoned to Romalia by the Pope. While at the rendezvous point to meet Julio, they witness a scene that will affect everyone’s future.

Julio and Saito's fight with the Ancient Dragon continues, and Saito still refuses to talk about his former partner. Louise must make her toughest decision so far.

Saito becomes trapped in Japan while the fight with the Ancient Dragon rages on. There's no telling if he'll even be able to return, much less make it back in time to help.