Roka Paramia

A young woman with black hair, whose right half of her face is covered with a skull-like mask, is an artificial Hollow created from numerous souls by Szayel Aporro Granz, originally the eighth Espada. Before being transformed into an Arrancar by the Hogyoku, she was a mid-level, pure white, spider-like Hollow. Szayel Aporro had endowed her with a unique ability called "Counter-Membrane Threads," allowing her to disappear by stopping the spiritual particle supply to the threads and activate various special abilities.

Due to her origins as an artificial Hollow and the nature of the Counter-Membrane Threads, she lacks innate instincts or desires like predation and fighting. Furthermore, Szayel Aporro deliberately prevented her from contact with the outside, resulting in her subdued emotions and seeing herself merely as a tool. However, she was slightly influenced by friendly interactions with Nelliel and others, and occasionally contemplates her reason for existence.

An encounter with Don Kanonji allowed her to gain emotions, leading her to use her abilities for herself rather than just being a tool. She appears once in the original series as a nameless female Arrancar and also appears in the novel "BLEACH Can't Fear Your Own World," where she heals Aura Michibane, whose soul had been severely damaged, at Nelliel's request.

Her Resurrección is called "Tail Llenia," which she initiates after forming her Zanpakutō with her Counter-Membrane Threads.

After her Resurrección, instead of a mask, white threads cover the right half of her face like bandages, and four spider-like arms emerge from her back. Within the area covered by her extended Counter-Membrene Threads, she can analyze leftover spiritual particles and replicate techniques previously used at that location as her own. However, she cannot perfectly copy techniques, and the stronger the technique, the greater the strain on her body.

Her release command is "Dance Madly 'Tail Llenia'."

Her ability, "Counter-Membrane Threads," involves transforming the counter-membrane into extremely thin and long threads, which can connect with all matter, sharing spiritual energy and information.

This ability excels in healing, information gathering, and defense due to its nature. Despite being counter-membranes, their fine thread-like form allows unheard-of infiltration into barriers, and wrapping the threads around one's weapon can enhance its defensive capabilities, exploiting the properties that prevent external interference. This ability was extensively researched by Szayel Aporro, inspired by Kenpachi Zaraki's ability with his Zanpakutō Rujurashogranate.