Athena Glory  

Siren, アテナ・グローリィ

The third character, known as Athena, works for Orange Planet and serves as Alice's mentor. While she can be forgetful at times, she genuinely cares about her friend. In the anime, Athena once rowed under a bridge without realizing it and failed to duck, but this did not diminish her passion for training with Alicia and Akira. She often joins them in joint practice sessions like Akari, Aika, and Alice do now. Athena has an enchanting singing voice that she uses to entertain customers and assist Alice when needed. Her laughter is unique and sometimes sounds angry, but it's all part of her charming personality. Athena first met Alicia and Akira while they were still trainee undine, practicing together before becoming prima undines. She tends to be quiet most of the time but enjoys joining in on fun activities. Her appellation as a prima undine is "Seiren" (meaning "Heavenly Voice").