“You over there were Luise Jorlande Orphelia Orwin, right? It is a big deal for Armstong to have an eye on you.” (Helmut)
“I had the honor to receive a good guidance from doushi.” (Luise)
The ability of Luise to use mana in hand-to-hand combat had been taught by Armstrong-doushi and even was at the level of having been approved by him.
Unable to use many spells although being blessed with a high amount of mana, she had obtained a strength to the extent of being even able to beat a dragon to death.
Also, seeing that she can safely interact with His Majesty even if she is nervous, it looks like Luise has also been the most careful about handling this part amongst the three.