'Kyuu?'
The Unnamed Fairy tilted her head at Vaan's comment with a confused look that seemed to say, 'Of course, we can understand with telepathy. Or how else are we going to communicate?'
'I suppose you're right,' Vaan responded with a wry smile.
Although the Unnamed Fairy possessed the appearance of an adorable young human girl, she also had fairy wings, brownish-golden eyes, rock horns, and a brown furry dress that seemed to be part of her body.
After Vaan started communicating with the Unnamed Fairy, he learned that she had been alone in the dark stalactite cave since she gained awareness of her existence.
'Kyuukyuu,' the Unnamed Fairy conveyed her thoughts.
The Unnamed Fairy was an Earth Spirit, a spirit born from the earth element-rich cave. She never had anyone to talk to. Thus, she never learned to speak.
Although she could produce sounds with her mouth, they don't have any meaning in any language. They were just sounds that helped her convey her thoughts better.