"Wh... what?" — Arabel asked, not understanding Alois' question.
She knew that her new sword technique, which she had obtained after the ascension trial, was related to aura.
Like Idan, after several attempts, she learned to sense this aura and use it at a level that allowed her and Idan to apply the basic techniques of their styles.
To master more complex techniques, they need to achieve a new level of control over the aura. Most of the skills and abilities were beyond their reach.
Alois' question about how they learned to combine aura with the elements also baffled them.
"Can't Nemo do that too?" asked Idan, looking at Nemo, puzzled by Alois' words.
Nemo, hearing Idan's question, shook his head negatively.
"He can't," Eulalia answered for Nemo.
"He's just combining his swordsmanship and shield skills with his magic. He doesn't know or know how to use aura yet."
