Juliet Harss is the mother of Dark Harss and is a Water- Mage. She disappeared a week after her son's birth and hasn't shown up since. She is one of the few Swordsmen to use a firearm.
Juliet is a tall caucasian woman with long black hair and green eyes. She wears custom Swordsmen Hunter Wear, which consists of a grey trench coat with dark green detail, black leggings, and long boots that go up to her thighs. She wears green Hunter marks and a Swordsmen Mask that has been scarred.
- Juliet possess one of the few 'unique' Swordsmen Masks, her's having a removable mouth piece.
- Juliet is known by many Swordsmen as Juliet the Secretive and Juliet the Quiet due to her personality, though she prefers using the title of Juliet the Dark to honor her father.
- Juliet's custom Swordsmen Hunter Wear differs greatly from the traditional wear worn by hunters. For one, the marks are completely different and are also much longer than traditional marks. The sleeves of her jacket are also cut above the elbows, her undershirt providing the main covering for her arms. Coming out of her jacket sleeves as well as her undersheet sleeves are pieces of cloth.
- Belladonna, Juliet's middle name, references the sleeping draught used by Juliet in Romeo and Juliet to fake her death known as deadly nightshade (Atropa Belladonna).