Sylvie is a rejected NESTS operative with a very zany persona. She’s a cheerful and innocent, yet strange and childlike individual. It seems her personality has been affected as a result of her powers or the experiments performed on her by NESTS. She considers the objects she wears and a voice inside her head as her friends and can take matters seriously. She’s trying to overcome her past trauma and fears her former NESTS seniors like Ángel (though not so much nowadays).