Reborn to Master the Blade: From Hero-King to Extraordinary Squire (Manga) Volume 6

Reincarnated as a girl far in the future, former Hero-King Inglis, now fifteen years old, has the chance to hone her fighting skills. Her cousin Rafinha and their friend Leone set off on a special extracurricular assignment to serve as the knights' reserve during a major trade deal. Aboard a massive Highlander airship, they meet the repulsive Ambassador Muenthe and his bodyguard from the Rambach Company. But wait... Doesn't that guard look familiar? When magicite beasts burst onto the ship's deck and threaten the offering, the girls learn that not everyone is who they seem.