Eyjafjalla is a key character in the mobile game Arknights, known for her gentle demeanor and remarkable intellect. She is a talented Caster Operator who excels in dealing high area-of-effect Arts damage. Despite suffering from Oripathy, Eyjafjalla remains optimistic and dedicated to her research. Her compassionate nature and unique skills make her invaluable to Rhodes Island, where she works to find a cure for the disease. She plays an important support and offensive role in the game's story and battles.