Iwakura Lain An apparently ordinary girl with a highly introverted nature and low self-esteem. At age 11, she begins to see and hear hallucinations, most prominently a double of herself. As a result, she sees a therapist at Tachibana General Laboratories. Lain also proves to be adept at psychology and computer science. Most of all, she is unbearably lonely. Yonera Touko Recently graduated from an American university, Touko serves as Lain's counselor and psychiatrist. She is a new employee at Tachibana Research Center, and Lain is her very first client, establishing quite a good relationship with her. This psychological trailers is told through pages from Lain's diary