Aris' body moved on its own like it was being guided by Aristoria who stayed beside her. If Aristoria didn't told Aris that the armor was the one that made her body move on its own, she would have felt anxious and confused. Aristoria revealed that the armor had her essence and it remembered Aristoria's moves and learned it. Basically, the armor was the one who guided Aris' body and it was aware of the battle that was happening.
"Aris, please keep an eye on Rasmus," Aristoria said as she watched Aris handle seven Fallen Watchers on her own without showing any struggle. "The power of the Overlord, the Ice Dragon is dangerous and I don't want him to become its servant," she showed her anxiety, worried about Rasmus' situation.
