Akiko Yosano is a member and personal physician of the Armed Detective Agency. Her ability is a rare healing ability, Thou Shalt Not Die. Yosano is a young woman who takes care of her appearance. She has straight, dark hair. Yosano carries herself with grace and dignity. She prides herself on being both a strong woman and a capable doctor, which is why she does not take too kindly to those who belittle her in both respects. She is a feminist.