Ar Ru is the Antibody Brain and one of the most important Wills of the Planet. Her first priority to preserve the life of the planet, Ar Ciel, posses a threat to mankind with her ability to re-format all life of Ar Ciel, destorying humanity.
After she is defeated, Ar Ru fuses with Tyria, but retains her own binary field.
Despite being an alternate persona like Soma or Sarapatra, she has a different voice actress than her primary persona.
English: Tara Platt
Japanese: Yuka Komatsu
