“A Thief’s Identity”
“Tōzoku no Shōtai” (盗賊の正体)

Worried that the princess may be blamed for Fouquet’s theft, Louise volunteers in front of the school administrators to go and catch her. Kirche and Tabitha volunteer as well. They travel to the place of Fouquet’s last sighting escorted by Longueville. Kirche, Tabitha, and Saito enter an empty, dusty house where Tabitha discovers the hiding place of the Staff of Destruction. Fouquet’s golem appears outside. Wanting to show her worth, Louise tries to fight the golem with some spells but fails. As she is about to be crushed, Saito rushes in to save her. Her confidence broken, Louise breaks into tears. Saito is moved by this and attacks the golem in her name as Sylphid rescues the nobles. He uses Kirche’s sword but when it breaks on contact with the golem Derflinger calls on Saito to use him. Saito draws Derflinger and the runes on his hands glow again. He is able to destroy the golem’s legs, but they reform shortly afterwards resulting in a stalemate. Louise tries to help by taking out the Staff of Destruction, which Saito recognizes as a M72 rocket launcher, and with his rune-enabled abilities, he fires it at the golem which is destroyed. In the aftermath Longueville claims the staff and reveals herself to have been Fouquet all along; she engineered the scenario to discover how to use the staff. She tries to kill the students who have found out her secret with the Staff but nothing happens, as it is a one-use item. Saito knocks Fouquet down and she surrenders. Later, Osmond reveals that 30 years previously, he was fighting a monster when a man (a soldier from Earth) used one of two “staves” to save his life. After the man died, Osmond buried the man and kept the other staff. The school holds a ball to celebrate the three heroines; Louise asks Saito to dance and thanks him for saving her.