Time for the conclusion of serial experiments lain.
Layer 13: Ego begins with blue static and Lain saying she’s confused again. Well, so are we. Rather than a voice-over we start with a recap of the last part of Layer 12. Alice doesn’t handle it so well, and we’re then shown a screen with the message, “ALL RESET” and on a second line, “Return.” Rewind!
The next few scenes show us what the different characters are up to now, after Lain presumably fixed things by undoing everything Eiri had done. Everyone is living, well, not quite happily ever after, but better. Only a couple people seem to notice that Lain isn’t there. Lain, however, is not happy. She has a conversation with a double about omnipotence and omnipresence. When Lain gets fed up with that, the image of her father appears in the sky, and they have some tea in the clouds.
Now comforted, Lain meets a now adult Alice, and they have a short conversation. The blue static returns, one more time, and Lain says to the camera, “I promise you I’ll always be right here. I’ll always be right next to you, forever.”
We’re coming into the home stretch of serial experiments lain. In Layer 12: Landscape, the voice-over returns. “Oh, okay… So that’s how it works. I had no idea the world was this simple. I always thought the world was such a big and scary place, but once you figure it all out, it’s all so easy.” A second voice adds, “See? I told you it would be.” The episode proper opens at school, with Alice gloomily watching Lain gossip with Julie and Reika. Lain sends Alice a message saying she should just rewrite bad memories. A static-covered image of Lain takes up the screen and apparently addresses the audience directly. “People only have substance in the memories of others. That’s why there were all kinds of me’s. There weren’t a lot of me’s, I was just inside all sorts of people, that’s all.”
In a voice-over, Eiri talks about how the world can be explained entirely in materialistic terms, and how people were originally all connected – and have now been reconnected through Lain’s efforts. By sharing information seemlessly Man can figure out what kind of animal he is and evolve by his own power. In a parking garage the MIBs discuss their situation, and how their client had been working with Eiri all along. The Tachibana boss shows up, hands over a suitcase full of money and tells them to run to a place with no electricity or satellite coverage, and leaves. Both die after seeing a vision of Lain.
Alice goes to Lain’s trashed house, and speaks with her. Eiri appears, is goaded into manifesting bodily, and is destroyed.
On to more serial experiments lain. In Layer 11: Infornography, the opening changes a bit. The title screen is made of up screens from the previous episode, and the voice-over is still missing from the cityscape. Instead, we see Lain being tied up in cables. Much of the episode is essentially a recap, going through the events of the series so far in a fast edited series of clips of previous episodes and a handful of other phrases flashing on the screen, but with the largest portion, especially near the end, focusing on Alice. Eiri then appears and tells Lain that she is, essentially, software, though Lain doesn’t like him talking about her as if she’s a machine. She then appears in the street and sees Chisa and the Cyberia shooter, who have a brief discussion about dying, and Lain finds herself holding the shooter’s gun with him telling her how to shoot herself (she doesn’t).
Then, it cuts to Alice’s room, where Alice is watching a message from Julie, who wants to set her up on a date to dispel rumours about her relationship with a teacher. Lain shows up with the body of that alien from last episode, talks about the “other” Lain and how she can fix the rumours. Alice is skeptical, but of course, the next day she realises that Lain really did make everyone but her forget what had happened.
Back to serial experiments lain. Layer 10: Love starts with our cityscape, but no voice-over this time. Lain and Eiri have a conversation in which they speak in each other’s voices, and Eiri explains how he put his consciousness into Protocol 7. Given his power he’s arguably a god, but to truly be a god he also needs worshippers, so he made himself a cult – the Knights. At school, Lain’s desk is gone and everyone is oblivious to her presence. As she starts to wonder if maybe she doesn’t need a body after all, Alice, or rather someone speaking through Alice, confirms this. Lain goes home, but the house is eerily empty and unkempt. Her room is messy, but none of her computer equipment is there. Mr. Iwakura appears in the doorway, says his work is done because Lain must have figured things out by now, that he loved her, assures her she’s not alone because of the type of being she is and everyone she can connect to in the Wired, and leaves.
Lain searches for information on the Knights, doxes them, and the MIBs go out and kill them. They then go to Lain’s house where she’s entangled in cables. One of them, Karl, explains that they’d assassinated the Knights as a job for a client, that the Wired can’t be a world to itself, and that they aren’t sure what sort of being Lain is. He adds as they leave that he loves her.
Back out in the street, Eiri tells Lain that she’s essentially a homunculus, that he’s “the man who loves her,” and that she should love him. Lain angrily refuses and he disappears.