蜘蛛鬼「姉」
from Demon Slayer: Kimetsu no Yaiba
Originally the Older Spider demon was a lone demon who decided to team up with other demons to survive due to fearing the Demon Slayers, having set themselves up in Natagumo Mountain, having been gathered by Rui to be his new "Family" where he then forced them to abandon their previous appearances and faces in order to match his and forced her to then be his "Older Sister" and forced her to protect him using her own life due to his belief that the older sibling should always shield their younger sibling. She and her "Family" then began preying on the native humans from around the mountain that thus then brought about the attention of the Demon Slayer Corps, who then began sending scores of their Demon Slayers in their attempt to rid the mountain of the demons, the Elder Sister Demon herself managed to kill and eat at least 80 or so humans during her time in the mountain and had successfully stored them inside her thread sacks using her Blood Demon Technique for later meals that were then later found by Shinobu.
Demon Slayer: Kimetsu no Yaiba
Since ancient times, rumors have abounded of man-eating demons lurking in the woods. Because of this, the local townsfolk never venture outside at night. Legend has it that a demon slayer also roams the night, hunting down these bloodthirsty demons. For young Tanjirou, these rumors will soon to become his harsh reality... Ever since the death of his father, Tanjirou has taken it upon himself to support his family. Although their lives may be hardened by tragedy, they've found happiness. But that ephemeral warmth is shattered one day when Tanjirou finds his family slaughtered and the lone survivor, his sister Nezuko, turned into a demon. To his surprise, however, Nezuko still shows signs of human emotion and thought... Thus begins Tanjirou's quest to fight demons and turn his sister human again. (Source: VIZ Media)
