Merlin and Gabria looked at each other for a moment, before turning back toward Eiro. The Demon crossed his arms and stared at them.
"First, to clear this up, I am correct in the assumption that Merlin is the one that created the barrier, right? Barrier magic is generally possible through other ways, but it's a lot easier to create a larger and more powerful barrier using Arcana." The Demon pointed out bluntly, and Merlin slowly nodded his head.
"Yes, it was me that created the barrier. Although Gabria is my student, she-"
"That's a lie. She's not your student." Eiro said bluntly, and Merlin stopped for a moment as he was confused, "No, it is not a lie! She is my student!"
"Well, you say so, but you clearly don't believe it." Eiro replied, "What is she to you?"