Ray is a Siren-type Xenos distinguished by golden feathers tipped in blue and striking blue eyes, possessing beauty comparable to Wiene. She dresses in attire reminiscent of an Amazoness. As one of the three Xenos leaders, she exhibits a warm and friendly nature coupled with profound concern for her kind's well-being, driving her to take extreme protective measures. An initial encounter with adventurers Bell Cranel and Welf Crozzo, mistaken for Xenos hunters, triggered intense bloodlust reflecting her monster-like instinctual aggression. Ray harbors a deep desire to live on the surface alongside humans, yearning to fly freely in sunlight and find embrace with someone she loves. During the crisis after Ranye's group's deaths and the captures of Wiene and Fear, she maintained composure while others succumbed to rage. Recognizing Bell and Welf's difference from typical adventurers sparked her hope for improved interspecies relations. During the Hestia Familia's visit to the Xenos' Hidden Village, she acted hospitably, using her singing to ease tension among the guests. Her development continued as she observed Bell during the Xenos-led invasion of Orario's eighteenth floor settlement. Initial doubt about his willingness to support the Xenos turned to profound joy upon learning of his rescue of a Xenos member, leading her to join Lyd in aiding Bell's efforts. Ray's feelings for Bell deepened as he persistently assisted the Xenos despite severe social and physical repercussions. She sometimes exhibits fragmented speech patterns and is renowned among adventurers for her extraordinarily beautiful singing voice, a talent sparking surface-world rumors. Regarding abilities, Ray utilizes high-speed flight for mobility and combat. Her Siren heritage grants her sound-wave attacks and echolocation. Her vocal talents extend beyond combat, as her singing demonstrates a documented calming effect. Throughout the conflict with the Ikelos Familia and the exposure of Knossos, Ray actively participated in the Xenos' survival struggle. She battled alongside allies when forced to defend themselves on the surface, confronting adversaries including the Loki Familia. Her character arc culminates in renewed optimism for coexistence, shaped by Bell's unwavering defense of the Xenos against societal persecution.