A (阿) is a member of the group Tsurezure Naru Ayatsuri Mugenan,as well as being the band's vocalist and guitarist.
She was born and raised in a samurai family from the far eastern world and is a childhood friend of Un. For the sake of spreading the unique sound from the eastern world in MIDI City, they have regular band activity.
A and Un cover their faces with a bamboo hat as it is part of the training itself. There are rumors that both are extremely beautiful girls.
A tan Shiba Inu wearing a bamboo hat over her head. She wears a dull navy robe with a pair of red and white toe-sandals.
In Flame Mode her robe darkens and gains a white cloth and red bead necklace. Hellfire mode changes her hat to one of silver, while her robe continues to darken and she gains a gold piece of material on top of it while the inside of the robe is pale blue. She wears pale blue toe-sandals with white socks.
In Burning Life mode, the bamboo hat turns gold and the light of an eye is visible from within it. Her outfit turns red and white with dark red and gold accenting. Her feet turn a gradient of red and orange, as if consumed by flames.
In the anime, she is revealed to have a pale tan muzzle, inner-ear, and eyebrows. Her eyes are chocolate brown and her hair is dark brown, worn in a thin, long ponytail held with red rope and a black ornamental stick. She is shown wearing her third forms attire, but with stockings to match the robe. As a human, her Inu parts are brighter in color while her eyes gain a gold tint and her hair is dull. The outfit remains the same.
A serious type who is often made fun of by her teacher, Daru Dayu. She has an honest, and frank personality.
- Sings with Un in the song "掻き鳴らせよ旋律".