Aiko is an 18 year old decendent of former-Japanese, her place of Birth is Astral Colony Edoni 5, or AC-Edoni 5, Aiko is a bounty hunter she grew up in one of the worst towns in her colony, The Edonies are Colonies inhabitated by several criminals, and in which everything can be bought, everything, Aiko is smart and unlike some of her comrades she do have a sense of justice, she don't wear those silly clothes the bounty huntresses of the movies and comics wear making them look like merchandise for men eyes.

She don't really hate men but her heart had been broken too many times, she became a Bounty huntress to get out of Edoni 5.