Mother

RACE Demon Human (Formerly)

GENDER Female

HAIR COLOR Black (Original Form) White

EYE COLOR Yellow (Original Form) Light Blue to Pale Green

AFFILIATION Spider Family

BASE OF OPERATIONS Mount Natagumo

HEIGHT 162cm

Her appearance is very similar to her "son" Rui, having the same milky-white skin, teal eyelashes and nails, and circular, red facial markings. She also possesses a short and curvaceous physique. Additionally, she had bushy eyebrows and long, white hair parted down the middle of her face which was tied with teal orbs into two, thick strands.

Mother wore a lengthy, layered kimono — maroon on the inside layer and white on the outside layer — that exposed part of her chest and was tied with a patterned obi. She also donned a beaded necklace composed of teal and purple orbs and decorative anklets. She also goes barefoot and has black nail polish on her toenails; the lower front of the kimono is open, exposing her legs.

However, it was revealed that this was not her true appearance, as her body was altered to look like Rui's. Her original appearance was completely different from her transformed one, with a much smaller, childlike body compared to her new, more voluptuous figure. Her skin was marked with two maroon lines on each of her cheeks and her eyes were rounder with yellow irises and x-shaped pupils. She also wore her short, black hair parted to the side with bangs framing her face and two, low pigtails.

Like most demons, Mother was cruel, unfeeling, and murderous towards humans. She ruthless controlled dozens of Demon Slayers through her threads and manipulated them into killing each other. She was also rather sadistic and callous, uncaring that her manipulation brought them prolonged suffering. In spite of this, spending time with Rui's family caused her developed an intense fear for him and Father, both of whom had abused her for being weaker than expected. This abuse was severe enough to make her embrace death instead of having to continue on knowing that both Rui and Father would continue to torment her.

It was later revealed that compared to the rest of her "family", she was technically the youngest demon of the family (her original appearance being that of a young girl) and was still coping with her previous human feelings and memories, which caused her to cry and grieve many times when remembering them. Due to this she became a target of severe reprimand from Rui, due to her inability to be a proper "Mother" to her "Children", who were all technically older than her.

Overall Abilities: Mother was a reasonably strong demon, far above the average demon and was a great danger to the Demon Slayers who ventured to Mount Natagumo. Due to her extensive array of webs and numerous spiders, the entire forest of the mountain became her domain, one that was hazardous to anyone unlucky enough to get ensnared in her silk. Because she sat at the centre and was surrounded by her silk and puppets, it made her location very difficult to pinpoint, which was only bypassed by Inosuke's sensitive sense of touch.

Shapeshifting: Thanks to the drop of Muzan Kibutsuji's blood provided by Rui, Mother possessed advanced shapeshifting. She was able to completely alter her physical appearance to match Rui, in order to be a part of the Spider Family. However, due to her lack of control over her lingering human emotions, she was prone to accidentally reverting her appearance, which greatly displeased Rui.

Enhanced Regeneration: Like all demons, Mother was armed with powerful regeneration, able to heal severe wounds in mere moments. She endured the abuse of both Father, a hulking demon of incredible strength, and Rui, who tortured anyone who made him angry with his razor-sharp and very hard strands of silk; in both cases, she healed completely.

Puppetry: Mother could create and manifest threads from the tips of her fingers that can extend to cover an entire mountain. She used her threads in a unique manner; by utilizing them to manipulate bodies like puppets. She achieved this by attaching her strings to her intended victims using small spiders, allowing her to control them from a remote distance. She could even use these strings to somehow bring out the full physical power of her controlled puppet to its maximum, albeit at the cost of putting her puppets through severe physical pain due to it. This ability also allowed her to control the corpses of demons, as she even acquired and preserved the dead body of a demon and prevented it from disintegrating to ash for use in combat. The closer the strings connected to her are, the more power she can exert over the puppets she manipulates.

Spider Manipulation: Mother could create and command small white spiders with red dot like design similar to the physical traits of herself and her "family" to stealthily attach her threads to her intended victims without them noticing. These spiders also have similar traits to demons, as they burn up upon getting stabbed/sliced by a Nichirin Sword.

Her “son“ Rui, is the leader of the fanily and lowermoon 4, making him one of the 12kizuki: the 12 strongest demons