Akiko is a middle-aged woman with fluffy neck-length dark brown hair and amber eyes.
Not much is known about Akiko, other than the fact that she is seen to be a calm and gentle woman who is usually seen at home cooking and preparing food for the family.
- The name Akiko means "bright, light, clear" (明) (aki) and "child" (子) (ko).
- Part of the name Aki can also mean "second, Asia" (亜) (a) and "hope" (希) (ki).
- Akiko's surname Oumae means "yellow" (黄) (ou) and "previous/previously, before, earlier, front/in front, former, above, one-time, fore part, privy parts/privates, miss, presence, portion, for, since, forward" (前) (mae).