After Shinji turns ten, he starts seeing a translucent girl his own age, with blue hair, and red eyes. The girl eventually introduces herself as Rei, and says that she was murdered by an old hag. The two of them become friends, as Shinji is the only one who can easily see her, and he feels sorry for her. She can, with some effort, produce various minor effects, like sounds, lights, and weak PK, so Shinji knows that he's not hallucinating.
Eventually, Shinji is called to Tokyo 3, and on the journey, Rei tells him about the place he's going to, and the most likely reason his father asked for him. When they arrive, they discover something new about Rei: its not that Shinji is the only one who can easily see her, its that only people with a strong connection to Rei can easily see her. Shinji is a blood relative, Rei is Rei, while Misato, Ritsuko, and Gendo work with Rei II a lot, and in Gendo's case, knew Rei I before her death. Not sure if Rei II's classmates can see Rei I, as Rei doesn't exactly interact with them, all that much. Likewise, not sure how long it'll take for Asuka to be able to spot her.
The thing that really bugs them is, ghost-Rei (whom Gendo explains as Rei's twin sister - "Their parents were lacking in imagination, when it comes to names.") doesn't read as an Angel, nor does she read as anything, really, other than a cold spot, and occasionally a shadow, or some lights and/or sounds.
What Rei I is, is up to the writer. I suggest that either all the Reis have separate souls, or Rei I is an unconscious projection from Rei II, like the image of her that Shinji sees in the first episode, but much more persistent.
Optionally, Shinji can see and otherwise interact with other ghosts, due to spending four years with ghost-Rei as his only friend. This may make synchronizing with the Eva, or being near the Magi, more interesting.
Eventually, Shinji is called to Tokyo 3, and on the journey, Rei tells him about the place he's going to, and the most likely reason his father asked for him. When they arrive, they discover something new about Rei: its not that Shinji is the only one who can easily see her, its that only people with a strong connection to Rei can easily see her. Shinji is a blood relative, Rei is Rei, while Misato, Ritsuko, and Gendo work with Rei II a lot, and in Gendo's case, knew Rei I before her death. Not sure if Rei II's classmates can see Rei I, as Rei doesn't exactly interact with them, all that much. Likewise, not sure how long it'll take for Asuka to be able to spot her.
The thing that really bugs them is, ghost-Rei (whom Gendo explains as Rei's twin sister - "Their parents were lacking in imagination, when it comes to names.") doesn't read as an Angel, nor does she read as anything, really, other than a cold spot, and occasionally a shadow, or some lights and/or sounds.
What Rei I is, is up to the writer. I suggest that either all the Reis have separate souls, or Rei I is an unconscious projection from Rei II, like the image of her that Shinji sees in the first episode, but much more persistent.
Optionally, Shinji can see and otherwise interact with other ghosts, due to spending four years with ghost-Rei as his only friend. This may make synchronizing with the Eva, or being near the Magi, more interesting.