When computers start to look like humans, can love remain the same? Hideki Motosuwa is a young country boy who is studying hard to get into college. Coming from a poor background, he can barely afford the expenses, let alone the newest fad: Persocoms, personal computers that look exactly like human beings. One evening while walking home, he finds an abandoned Persocom. After taking her home and managing to activate her, she seems to be defective, as she can only say one word, "Chii," which eventually becomes her name. Unlike other Persocoms, however, Chii cannot download information onto her hard drive, so Hideki decides to teach her about the world the old-fashioned way, while studying for his college entrance exams at the same time. Along with his friends, Hideki tries to unravel the mystery of Chii, who may be a "Chobit," an urban legend about special units that have real human emotions and thoughts, and love toward their owner. But can romance flourish between a Persocom and a human? パソコンが人の形をしている、今とはちょっと違う世界のおはなし。 大学受験に落ちて、浪人中に予備校に通うため、上京した本須和秀樹。 上京してきたその日にゴミ捨て場に捨ててあった人型パソコンを拾う。 そのパソコンは、めちゃくちゃかわいかったのだが、「ちぃ」としかしゃべらなかった。 本須和は、そのパソコンを「ちぃ」と名づけ、一緒に生活していくことにした。 かわいくて、でも謎も多いちぃや、パソコンのことから勉強のことまで助けてくれる、お隣さんで予備校友だちの新保、その新保の元気のいい自作モバイルすももたちに囲まれて、本須和のにぎやかな浪人生活が始まる。
