Ouran High School Host Club. (the image on the left side is Tamaki.) Haruhi Fujioka is a scholarship student at Ouran High School, a fictional school located in Bunkyō, Tokyo. Because of the superlative cost of the school uniform, Haruhi resorts to wearing long slacks, polo shirts and vests. Combined with her large glasses and tousled short hair, Haruhi's look causes her to be confused for a boy. Looking for a quiet place to study, Haruhi stumbles upon the Third Music Room, the working place of the Ouran Host Club, a group of six extremely attractive male students (Takashi Morinozuka, called "Mori"; Mitsukuni Haninozuka, called "Hunny"; twins Kaoru and Hikaru Hitachiin; Tamaki Suoh, and Kyoya Ootori) who spend their time charming and entertaining the school's girls for profit. During their first meeting, Haruhi accidentally knocks over and breaks a vase valued at ¥8,000,000 (in the United States English manga the amount is US$80,000).

In order to pay off the large debt, Haruhi is employed as the club's "dog" and is constantly ordered to do menial tasks like serving food or cleaning up. The club president, Tamaki Suoh, without knowing she is really a girl, promotes Haruhi to "host" as soon as he discovers her potential. Even after the truth comes out in the Club, Haruhi continues the charade and is allowed to pay off the rest of her debt working as a host; in order to accomplish this, Haruhi conceals her true identity/gender from the customers and the school.

Chobits. The story centers on the life of Hideki Motosuwa, a repeat student attempting to qualify for university by studying at Seki prep school in Tokyo. Besides a girlfriend, he dreams of having a persocom (an android) used as a personal computer, which is expensive. On his way home one evening, he stumbles across a persocom in the form of a beautiful girl with long hair lying against a pile of trash bags, and he carries her home. Upon turning her on, she instantly regards Hideki with adoration. The only word the persocom seems capable of saying is "chii" thus he names her Chii. Hideki assumes that there must be something wrong with her, and so the following morning Hideki's neighbor Hiromu Shinbo tries to analyze her with his mobile persocom Plum, and after Plum crashes concludes that she must be custom-made.

Shinbo introduces Hideki to Minoru Kokubunji, a twelve year old genius who specializes in the field of custom made persocoms. Minoru's persocoms, including Yuzuki, a fairly exceptional custom made persocom, are not able to analyze Chii 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 could be a possibility, Minoru is confident that it is only a 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 Chii words, concepts, and appropriate behaviours, in between his crammed schedule of school and work. At the same time, Chii seems to be developing feelings for Hideki, at an emotional depth, which she is not supposed to possess, and Hideki struggles with his feelings for her. The need to figure out more about Chii and her mysterious functions and past becomes a stressing pull for the characters in the series.

Hideki discovers that his feelings intensify for Chii whether she is a persocom or not, despite other horrible experiences involving persocoms that happened to his friends. Chii 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 towards people 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 not capable of doing unlike other persocoms. These picture books awaken Chii's other self, her sibling Freya who is aware of their past and helps Chii realize what she must do when she decides who her "person just for me" is. Together, Chii and Hideki explore the relationship between humans and their new technological advantage, the persocom, as well as their friends' and their own.

H2O: Footprints in the Sand. H2O's story revolves around Takuma Hirose, a blind young male junior-high school student, though the cause for his blindness is undetermined. After his mother died an unexpected death, it left a deep emotional scar on him, which caused him to become very lonely and reserved. Due to this, Takuma and his uncle move from the city out into a rural area and Takuma is enrolled into a new junior-high school. At his new school, he meets several new girls, though three of whom he gets to know the most out of anyone else. They are, the firm and obstinate Hayami Kohinata, the kind and obliging Hinata Kagura, and the cheerful and mysterious Otoha. As Takuma interacts with these girls, his medical condition gradually begins to heal.