A "chobit," a technologically advanced persocom rumored to possess true machine intelligence, with the ability to feel emotions and act on her own will, unlike other persocoms. Hideki finds her in a pile of trash as he makes his way home from work one night. Upon turning her on, she is only able to say the word "chi," remembers nothing of her past life, and is unable to perform even simple tasks. Because of this, Hideki names her Chi and undertakes teaching her how to function. Chi reads a series of children's picture books, A City with No People, about a character searching for the "person just for me," which were written pseudonymously by Chitose Hibiya as a way of reconnecting Chi to her past self, and to guide Chi's search for love.