>>2424307So in the light novels, Rei number Quatre , whose hair was adjusted to silver and wears a black plug-suit, suffered mind contamination and descended on Earth as an enemy in EVA unit 0.0.
her inexplicable behavior like kissing Shinji while declaring she will kill him shows that there is something mysterious inside her besides hatred towards Shinji.
If you read them in the original Japanese, they're hilarious!