Everyone is surprised to see Angela awaken a beautiful catalyst as her soul weapon. Lena and Marie have just witnessed the power of Mira's soul weapon and already understand how important such a tool is for a mage.
Mira understands that better than anyone there and is very happy for her 'sister.' She sees more and more similarities between them.
But without a doubt, the person most shocked by that is Lust. She is only finding out more about Soul Weapons with Lucien due to Aylin's memories, but she has a vast general knowledge in her mind, which leaves no doubt that it is not easy to awaken such mysterious weapons.
And he just wondered if there was an easier way not only to awaken the soul weapon but also to choose what it would look like.