Cassandra Ilion, a human adventurer, first joined the Apollo Familia after the god Apollo forcibly recruited her. Following the Apollo Familia's defeat in the War Game against the Hestia Familia, she transferred to the Miach Familia alongside her close friend Daphne Lauros. Before her recruitment, she experienced a sheltered upbringing and received a high-class education. She possesses long, waist-length blue hair and light green eyes, contributing to a delicate and beautiful demeanor. Cassandra exhibits pronounced timidity and nervousness, often adopting a submissive attitude, especially toward Daphne, whom she relies on for guidance and support. Despite this obedience, she displays occasional stubbornness regarding deeply held convictions, like refusing to replace a lost favorite pillow despite Daphne's practicality. She shows childlike innocence and candidness, prone to emotional outbursts over personal losses or intense food cravings. Her identity centers on prophetic visions—symbolic dreams warning of future events—which she interprets with unwavering faith. A recurring tragic element is the consistent dismissal of her prophecies by others, causing frustration and isolation. Bell Cranel is a rare exception who believes her visions, fostering her gratitude and romantic interest. Her capabilities focus on healing and prophecy. As a Level 3 healer, her effectiveness significantly increased. Her magic includes "Soullight," a rare wide-area healing spell restoring wounds and stamina across a scalable range, and "Cure Ephialtes," curing status ailments like poison and curses, though she initially underestimated its potential. She possesses the skill "Five Dimension Troia," noted for its indecipherable nature and mythological allusions. Beyond healing, she demonstrates competence as a markswoman, achieving approximately 70% accuracy with a short bow. Her prophetic ability manifests through cryptic, symbol-laden dreams forewarning significant events days or weeks in advance; their ambiguous nature complicates interpretation. This power has aided survival in perilous situations despite widespread skepticism. Key equipment includes her "Holy Crystal Rod," a self-purchased staff amplifying magical abilities, and a personally crafted "Rabbit Charm" made from Xenos hair. This charm was inspired by a prophecy related to Bell Cranel, whose subsequent alias "Rabbit Foot" she viewed as fateful. Her most significant bond is with Daphne, forged through shared coercion into the Apollo Familia. Their dynamic features mutual dependence, with Daphne often protective. Cassandra harbors admiration for Bell Cranel, stemming from his trust in her visions during critical moments. Her relationship with Apollo remains complex due to his role in her recruitment and the mythological curse mirroring her prophetic disbelief. During Season 4's narrative, Cassandra's prophetic abilities drive plot points. Before the Hestia Familia's expedition into the dungeon's lower levels, she experienced an ominous dream depicting widespread carnage among adventurers—a warning urgently communicated yet largely ignored. During the Moss Huge incident on the 25th Floor, events unfolded precisely as foreseen, including plant-based parasitic infections affecting allies. Her distress intensified as the prophecy validated itself, yet party members remained dismissive. Later, investigating Ryuu Lion's alleged crimes, Cassandra had another foreboding dream implying catastrophic outcomes for the hunting party. Unable to sway the group directly due to her curse of disbelief, she resorted to indirect methods—fabricating reasons to exclude certain members and beseeching Welf Crozzo to craft protective armor for Bell. These actions reflected strategic adaptation to circumvent her curse while striving to mitigate disaster. Mythological references permeate her character: her name and surname derive from Cassandra of Troy, a prophetess cursed by Apollo to never be believed, while her skill "Five Dimension Troia" and the kanji meaning "The princess who eulogizes the tragic world" reinforce this tragic archetype.