Juugo has the appearance of a woman with her head completely covered in bandages. She wears a casual feminine business outfit composed of a long-sleeved dress-shirt and a blazer, as well a short skirt.
She can summon countless knives, razors, axes, and other sharp things by thin air to attack her opponent by levitating and then hurling these weapons at her opponents.
She can create a laser wire trap that slashes anyone or anything that hits the lasers.
She has also displayed incredible self-regeneration/recovery capabilities, as Nana had shot her numerous times across her body and she quickly recovered in a matter of seconds and later Nana needed to repeatedly use her Twisting lasers on her to permanently kill her.
She is first seen during the meeting of Site Administrators. She is later sent by Ichi alongside Roku to kill Nana. Juugo overwhelms Nana with her barrage of weapons and her lasers, as well her regeneration allowing her to shrug off Nana's attacks. After Nana ambushes and kills Roku, she proceeds to kill Juugo as well. Juugo's body is seen regenerating, but Nana keeps shooting at her until nothing is left.
- Her name translates to "Fifteen".
|Administrators||Ichi | Ni | San | Shi | Go | Roku | Nana | Hachi | Kyu | Juu | Juuichi|
Juuni | Juusan | Juushi | Juugo | Juuroku | Juushichi | Juuhachi
|Others||A | The King of Ancient Humanity|