Older Sister Spider Demon

蜘蛛の鬼 (姉

The Older Sister Spider Demon was a member of the Spider Family.
Her physical features resemble those of her "Younger Brother" Rui: she has completely milky pale white skin, snow-white hair, and pure white eyes distinguished only by silvery pupils. She also bears several red, dot-like patterns on her face, similar to her "Family." Her original demon appearance differed significantly from her current one; she had altered her features after Rui forced her into the family. Originally, she had black hair, slitted cat-like eyes, and grayish skin.
The Older Sister Spider Demon is the most cautious of her "Family," preferring to observe and stand back rather than immediately engage in battle against Demon Slayers. She is also among the most cowardly members, both in combat with the Demon Slayer Corps and in handling internal family conflicts. When the Mother Spider Demon was violently abused and reprimanded by "Younger Brother" and her "Father," she did not help; instead, she stood back and gave her "Mother" a severe glare for her weakness. She displayed further cowardice by trying to convince Rui to flee rather than fight after most of their Family was defeated. In truth, the Older Sister Spider Demon loathes and hates her "Family," believing she would have fared better on her own and considering the rest of her "Family" idiots for complying with Rui. Nevertheless, she did whatever it took to survive, even attempting to evoke sympathy and pity from Shinobu Kocho despite knowing she was a Demon Slayer. Later, she showed a gullible side, genuinely believing Shinobu's promise not to kill her and confessing the number of people she had killed.