Lilith Crowley

Lilith Crowley, full name Nuit Ma Ahathoor Hecate Sappho Jezebel Lilith Crowley, usually referred to as Lilith (リリス), was the first daughter of Aleister Crowley and his first wife, Rose Edith Kelly.

Lilith's early death from illness, revealed to be a result of the 'sparks' between clashing phases, is a key motivating factor in Aleister's plan to destroy all magic.

Etymology
Many of the numerous names comprising Lilith's full name are those of figures from various mythologies:
 * is a Thelemic deity derived from Egyptian goddess.
 * is a Thelemic reference derived from Egyptian goddess.
 * is a Greek goddess associated with witches.
 * was an ancient Greek poet from the island of Lesbos, best known for her poems about love, most now lost and only surviving in fragments.
 * was a queen from the Hebrew bible who promoted the worship of and  rather than God and eventually met death as a result, coming to be associated with false prophets.
 * is a figure from Jewish mythology, derived from earlier Mesopotamian mythologies. Held to be a female demon and creature of the night, stories in the Middle Ages came to associate Lilith with being Adam's first wife and the mother of demons.

Background
Several years before Lilith's birth, Aleister learned of his future daughter's death and the circumstances behind it from his mentor, Allan Bennett. On learning how the Golden Dawn's activities were producing 'sparks' of the kind that would lead to his daughter's death, Aleister engineered the destruction of the cabal and cursed its members.

Several years later, Aleister met Rose and after marrying, she became his assistant in his magical research. In Egypt in 1904, Aiwass was summoned into Rose's body and conveyed to Aleister the secrets that he would compile into the Book of the Law which would form the foundation of Thelema. A little while afterwards, Lilith was born. Obsessed with his daughter, Aleister read the stars to determine the name he would give his daughter, one which carried meaning and ended up being very long.

Aleister temporarily stopped his magical research in order to assist with Lilith's birth, and protect his unstable wife and daughter afterwards. After their condition stabilized, to make up for the delay, he set off on a trip to a great mountain to achieve a certain objective. However while he was there, the effects of 'sparks' resulted in Lilith's sudden death from illness. Aleister learned of his daughter's death by letter once he was finished at the mountain. Aleister had wished for his daughter's happiness more than anyone but had not been allowed to come running and be with her as she died. On that day, Aleister left a single tearstain in his diary.

Lilith's death was the beginning of Aleister's fall, a trigger great enough for the "human" to hate and curse the destiny of the entire world. Striking back against that which had taken his daughter and torn his family apart, Aleister would plan the destruction of the phases and all magic.

Aleister Crowley Arc
During his ascent through the Windowless Building, Kamijou Touma was shown the story of Aleister Crowley through a series of visions, including Lilith's birth and Aleister's actions resulting from her foretold death.

Trivia

 * The real Lilith Crowley (1904-1906) had the same long name and short life which her Toaru counterpart had, though with several differences in circumstances. After Lilith's birth, Aleister made an attempt to climb Kangchenjunga, as well as going on several other journeys accompanied by Rose and Lilith. Further rituals to contact Aiwass were conducted during their travels. In 1906, following the family's trip to Southern China, while Rose and Lilith were returning to Europe with Aleister himself on another separate journey, Lilith died of in, something which Aleister learned on his return to Britain.
 * When referring to Lilith's long name, the Reading Thoth 78's recreation of Mina Mathers compares it to, referencing a folktale and common story involving a newborn baby who ends up with a ridiculously long name (Jugemu Jugemu Kaijarisuigyo-no Suigyōmatsu Unraimatsu Fūraimatsu Kuunerutokoro-ni Sumutokoro Yaburakōji-no burakōji Paipopaipo Paipo-no-shūringan Shūringan-no Gūrindai Gūrindai-no Ponpokopī-no Ponpokonā-no Chōkyūmei-no Chōsuke).