Irene serves as helmswoman aboard Hayabusa Jetter's spaceship, piloting and navigating the vessel during missions to breach the Orbital Ring System blockades. She actively participates in combat, often exclaiming "That felt good!" after engagements. Her spirited and sometimes impulsive nature surfaces in conversations like holiday planning, where she might forget her swimsuit and casually decide, "Buy a new one. We'll be rich soon." During intense operational sequences, such as space battles, her voice takes on a notably high-pitched or squeaky quality, evident when announcing critical events like shield failures. Her role centers on her operational duties and interactions with the crew during their blockade-running missions.