Risa is a prominent supporting character in Phantasy Star Online 2, serving as an ARKS operative known for her unsettlingly cheerful personality and extreme fascination with combat, especially firearms and explosions. She often speaks in a bright, playful tone while displaying a dangerously violent streak, making her both comic relief and a memorable wildcard within the cast. As a skilled fighter, she supports the team in battle and adds tension, humor, and unpredictability to the story.