[ ...? Is that... ... is he a blushing? Just a bit?

... that is so incredibly charming somehow, and Allen blinks for a moment before smiling wide. He could be a little cheeky, but he won't and just holds the knowledge as something very dear in his heart. He gives a small nod, eyes warm. ]

An exorcist measures their strength by a synchronization percentage they have with their Innocence... something that only gets stronger when we understand better what are own desires are and it acknowledges that. If it's too low it won't listen to us and can backfire.