Summary
The Older Sister Spider Demon served as a member of the Spider Family. Her physical appearance closely resembles that of her "Younger Brother" Rui, featuring milky pale white skin, snow white hair, and pure white eyes with silvery pupils. Red dot-like patterns adorn her face, mirroring her relatives. Her original form differed significantly, possessing grayish skin, black hair, and slitted cat-like eyes before Rui forced her into this new demonic shape to integrate her into the family. She is the most cautious member of the group, preferring to observe and remain in the background rather than engage directly in combat against Demon Slayers. This caution stems from cowardice, as evidenced when she refused to intervene while the Mother Spider Demon was brutally abused by Rui and the "Father," instead offering only a cold glare. After most of the family fell, she attempted to convince Rui to flee rather than continue fighting. Internally, she despises the family and believes she would have been better off alone, viewing the others as fools for complying with Rui. Nevertheless, she prioritizes survival, even resorting to feigning sympathy and pity to manipulate Shinobu Kocho. She displays a gullible nature by genuinely trusting Shinobu’s promise not to kill her, which leads to her confessing the number of people she has killed.
