Sirene is a prominent character from the anime and manga series 'Devilman', created by Go Nagai. Known for her striking beauty and formidable powers, Sirene is a demon with a bird-like appearance, characterized by her large wings and sharp talons. She is fiercely loyal to the demon lord Zenon and harbors a deep grudge against the protagonist, Akira Fudo, who transforms into Devilman. Sirene's role in the series is significant as she represents the relentless and vengeful nature of demons, constantly challenging Devilman in epic battles.