Helena is St. Louis' younger sister, and excels in offering support, which comes from her self-sacrificing nature. When she first joined, she wasn't very confident about herself, but her proficiency with using SG radars brought results, which led to many relying on her for help. It's no surprise that she's participating the Joint Military Exercise as support. She is looking forward to the event, and is also hoping to get a chance to be with her older sister and members from the other nations.