The first episode opens with the mysterious suicide of a high-school girl, Chisa Yomoda. Chisa-chan was a classmate of Lain Iwakura, a quiet, 14-year-old high-school girl. One of the other girls in the class has been receiving e-mail messages from Chisa-chan, and Lain discovers she also has mail from Chisa-chan. In the mail she explains to Lain that she just abandoned her flesh. She assures lain that she still is alive in the 'wired' world. After getting a new 'navi' and adding a 'psyche' circuit, Lain spends more and more time in the wired. It seems that Lain has at least 2 personalities, and Lain's first personality is changing even now. Who is lain? Who are the 'knights'? Can the wired influence the real world with a prophecy? Is the real world nothing but a hologram of the information in the wired?

1. "S"Peed - 5:22
2. Professed Intention and Real Intention - 4:36
3. Antidepressant O44 - 6:17
4. Psychedelic Farm - 4:24
5. Invisible File - 4:53
6. Prayer - 5:58
7. Island in Video Casset - 5:38
8. K.I.D.S - 6:55
9. Cloudy, With Occasional Rain - 5:06
10. Infanity World - 5:19