Mbryo: Rei-1's personality shows what Lilith's personality was originally like before her experience as Rei Ayanami; innocent but cruel at the same time. Not the stereotypical personality you'd expect the mother of all living beings to have. It reflects the fact that Lilith was originally represented as a demoness in mythology. Also interesting to note that her personality bears significant similarities with Kaworu's personality in Sadamoto's manga adaptation.
