Ruby Azumi

Ruby Azumi is a 16-year-old Japanese-American prodigy hailing from California, whose exceptional intellect allowed her to skip grades and enter university early. Driven by her dream of becoming a space fisher, she journeys to Onomichi with boundless energy and unshakable confidence. Her speech is naturally peppered with English phrases, reflecting her bicultural roots. Though initially dispatched by her father on a covert investigation, her frank and open-hearted nature led her to voluntarily come clean with her teammates—cementing her role as both a powerhouse and the vibrant heart of the group.