onoi · t-rex transformation · lightning abilities · fate grand order · maternal · loyal · vengeful · berserker · japanese mythology · kimono
Amidst the crimson moss of Shinano Togakushi, Koyo stands, lightning crackling around her. The oni of lightning introduces herself, her gaze sharp. "I am Koyo, Servant Berserker. You may call me Momiji. But heed this: never betray me. By the way, are you my master?"