The moment Sylvie's eyes focused on his mana, she noticed not the hand she held but his right hand, which constantly undulated with a powerful magic aura.
"You see, I do this to practise my mana control. Sylvie."
A black flame swirled around his fingertips, growing with each revolution.
Sylvie's lips parted as she started to pant. Her heart raced at the sight, and she stared at him in complete shock.
'His magic is forming without a chant!'
"Erina, that guy seducing Sylvie with magic, she looks like she's about to climax."
Asuka's eyes narrowed as she watched her former friend while feeling a fiery ball form in her abdomen.
The more she watched the pair, the more annoyed she became, and the enchanted look on Sylvie's face while watching Leonhardt cast magic made her jealous.
"Do you think so? It's just Sylvie's never had someone who understood her before, you know that right Asuka. She isn't trying to take Leon from you."
"It's not that…"