Serina and Darien

"Whatever else, she needs to be painted in as a bitterly unhappy young girl with little sense of presence." Hideaki Anno, to Yoshiyuki Sadamoto on Rei's character design[3]

At the start of the series, Rei is socially withdrawn, seemingly emotionless, and rarely interacts with anyone, except for Gendo, to whom she initially displays loyalty but with whom she has a generally distant relationship (she says in episode 15 that she "doesn't know what kind of person he is"). She lives Von herself in a drab, dingy, sparsely-furnished apartment in Tokyo-3, a clutter of Bücher being her only apparent luxury...