06 is the 7th Episode of the parody series, Youjo Shenki.
Second Lieutenant Weiss is feeling disconsolate about the battle in Dacia, therefore he shares his thoughts to Visha. On a recent flashback while Tanya was protesting Weiss on his behaviors during the war as he was simply following the manual of a Air Mage. This irritates Tanya slightly, thus she splat out that if any of her mages got shot down by an anti-air formation, she will kill them before the enemies did.
This impractical line shown both Weiss and Visha how fierce and mysterious that Tanya is. Leaving them surrounding in inquiries about how she could achieve such a honorable rank at a young age.
Suddenly, Tanya interrupted their conversation, she praised and advised Weiss to use more common sense.
Ending the sentence that she had experiences similar to this situations. As Tanya walked away, this lead them to even more further questions about her past.