Flute in illusion space could not interact with Melody. Edgar's illusion space could not make the character act like an AI. He could only make Flute demonstrate the Art of Zither. It was like Melody was watching a recorded tutorial.
Flute will only show the basics of the Art of Zither, the first few rhythmic movements and breathing to reach the first level of aura, so Melody could use life detection to see.
Edgar pulled his consciousness out of the illusion, but his hand was still on Melody's head. He felt a stare. He turned his head, and he saw the little girl staring at him with unkind eyes. The chocolate had been eaten by her completely. She remembered that she had to guard her older sister. She was surprised and looked angry that the handsome brother was touching her sister's head. She crossed her arms, and a frown appeared on her face.