“Louise the Void”
“Kyomu no Ruizu” (虚無のルイズ)

Saito tells Louise that he wants to return home to Japan during the upcoming solar eclipse, and he gets angry when she brushes it off as if she doesn’t care. He waits for Louise to return from her meeting, where war between Albion and Tristain is declared inevitable. Princess Henrietta assembles a military force that conscripts the boys from the academy. Louise walks in on a sleeping Saito whereupon she says goodbye. The next morning, Saito wakes to find a letter in which Louise has written, “You’re fired! Just go wherever you want!” Louise decides to join the princess in war. The next day, Saito gets in his Zero fighter plane while Henrietta advances with the Tristain military to intercept the invading Albion force at the village of Talbes. Instead of flying straight into the eclipse, Saito attacks Albion’s dragon squadrons, who are unable to keep up with the plane’s speed. Saito runs out of bullets and is attacked by Wardes on a wind dragon. Tabitha, Kirche, and Louise rush to help Saito. Louise jumps from Sylphid to Saito’s plane, guided by Tabitha’s magic. Swept up by her feelings at the thought of Saito being harmed, Louise and Saito finally made a connection. Louise unlocks her Void magic for the first time and casts a powerful spell known as ‘Explosion’ which destroys the entirety of Albion’s aerial attack force including Wardes. After the battle, with the solar eclipse past and the Zero Fighter nearly destroyed, Saito and Louise sit by the plane’s wreckage where they have an argument once again about Saito’s firing. They end up kissing, and renew the contract between them. Elsewhere, Cromwell tries to hypnotize Kirche and Tabitha with the Ring of Andavari, but Guiche saves the girls by hitting him over the head with a tree branch. Later, the four aristocrats are awarded medals by the princess, and Tabitha is given the Water Spirit’s ring to fulfill her promise. Louise is so excited about her medal that she rushes to show it to Saito only to find him chatting with Siesta. In typical fashion, Louise overreacts and punishes Saito using her explosion spell.