The youngest and only female member of Homra, she is also a Strain who dresses in gothic lolita fashion. Anna has the ability of perception using her red crystal marbles, which she forms out of her own blood. She lost her parents in an accident, and met Mikoto through her Aunt who was Mikoto's teacher at the time. She is the mascot character of Homra, and is quite emotionally attached to Mikoto. She loved Tatara's singing, and was his No.1 fan. She has a type of color blindness where she can only recognize the color red.