Minoru Kokubunji, a twelve-year-old prodigy who specializes in the field of custom-built persocoms. Minoru's persocoms, including Yuzuki, a fairly exceptional custom-built persocom, are not able to analyze Chi either, and thus they conclude that she may be one of the Chobits, a legendary series of persocoms rumoured to have free will and emotions. Although this is a possibility, Minoru is confident that it is only rumour. Yuzuki also adds that she does not resemble any persocom model in any available database and so she must be custom made after all. A major part of the plot involves Hideki attempting to teach Chi words, concepts, and appropriate behaviours, in between his crammed schedule of school and work. At the same time, Chi seems to be developing feelings for Hideki, at an emotional depth she is not supposed to possess, and Hideki struggles with his feelings for her. The need to figure out more about Chi and her mysterious functions and past becomes a pull for the characters in the series. Hideki's feelings intensify for Chi regardless of her being a persocom and despite his friends' painful experiences involving other persocoms. Chi becomes aware of her purpose through a picture book series called A City with No People which she finds in a bookstore. The books speak about many different things involving human and persocom relationships: persocoms and their convenience as friends and lovers, how there are things that they cannot do and questioning whether a relationship between a persocom and a human is really one-sided. It also speaks about the Chobits series; that they are different from other persocoms, and what they are incapable of doing unlike other persocoms. These picture books awaken Chi's other self, her sibling Freya who is aware of their past and helps Chi realize what she must do when she decides who her "person just for me" is. Together, Chi and Hideki explore the relationship between human beings and persocoms, as well as their friends' and their own. Production Clamp—a creative team consisting of Satsuki Igarashi, Ageha Ohkawa, Tsubaki Nekoi and Mokona—wrote and illustrated Chobits, which is the first of their manga to be targeted towards older male readers (seinen manga). The idea for Chobits originated from the group's experiences with computers, which would present indecipherable error messages when experiencing difficulties, to which they added a "sexier spin" to the concept. After completing their previous manga