"Personafix," Aria nodded. "This is something unique to everyone with no general principle to it. Basically, you have to pour Aethir force into your soul until it produces an Affix. An Affix has unique effects that are related to yourself, based on your experience, personality, and such."
"That is intriguing," Lilith's eyes shone. "I want to try it now."
Aria laughed and said, "No need to hurry. Your Affix can also change depending on your state, so people usually use Personafix every month since Affixes can get more powerful and you can choose to remove or keep them."
"You can have multiple?" Lilith raised her eyebrows.
"Yes, but it depends on your soul power. Nira told me that 11k Soul Power means one can have a single Affix, and 21k Soul Power will allow you to have two affixes."
Lilith smiled, "I have 12k Soul Power, so I can awaken it. Good."