It was clear that Caja had no interest in Khan's mission or general reasons behind his presence on Milia 222. She only had her species in mind, so her questions aimed to uncover Khan's true character and desires.
Khan's answer sounded quite vague in Caja's mind. She felt proud of her species' arts, but she couldn't understand why Khan wanted them. Mere curiosity couldn't explain his desires either.
"[Why]?" Caja asked. "[Humans are ignorant to the ways of mana, but their methods are efficient. If it's about power, your species already has worthy paths]."
"[My element is troublesome to handle with only human techniques]," Khan explained before revealing something deeper, "[And I find their approach to mana too limited. I can't stick to that after learning more expansive arts]."
"[Show us what you learnt]," Caja ordered. "[I want to see these arts]."
