Not much is known about Ayatsuri before she joined Hakkin. However she has stated that she was once a citizen in the Land of Rivers. When coming to Hakkin she had amnesia, not knowing about her past life or who she was.
Ayatsuri has green eyes and light blue hair, tied into two bushy tails at the back. She wears a green headband with two horns on top. The horns have a jagged pattern on them. Her outfit consist a green sleeveless robe with yellow edges and a gold wing-like pattern on it, wrapped around her anticlockwise. She also wears gray metal gauntlets with green gloves with yellow edges under them, a pink skirt with a white edge under the robe, black leggings, purple shoes, a pink ribbon tied in a bow around her neck and a pink cloth tied around her waist.