Chocotto Sister

The story centers around a Christmas wish made by Haruma Kawagoe after his mother had suffered a miscarriage, followed by an operation which prevented her from having any more children. Several years later, when Haruma is a college student, a woman on a flying motorbike claiming to be Santa Claus delivers his wish, a younger sister. When he remarks that he made his wish a long time ago, "Santa" replies that making a little sister takes a lot more time than just making an android, takes his signature for delivery, and departs. Haruma now has a little sister, who comes with her own instruction manual—a manual for how to be a little sister, that is. When she asks him to name her, he calls her Choco, which refers to the Japanese word for "manual".

Girls Bravo

Girls Bravo features a young male student named Yukinari Sasaki who was teased and bullied by girls to the point that he developed an allergic reaction, breaking out in hives whenever he comes into contact with a female. One day, when he comes back from school, he falls into his bathtub and is transported to "Seiren", a mysterious world with a mostly female population. While Seiren is featured in several episodes, the majority of the series takes place in Japan.

To Love-Ru

To Love-Ru

Plot

The story of To Love-Ru revolves around Rito Yūki, a high-school student who cannot confess to the girl of his dreams, Haruna Sairenji. One day when coming home and sulking in the bathtub, a mysterious, nude girl appears out of nowhere. Her name is Lala and she comes from the planet Deviluke, where she is the heir to the throne. Her father wants her to return to her home planet so she can marry one of the husband candidates. But she decides that she wants to marry Rito in order to stay on Earth. Commander Zastin has been ordered to bring Lala back and has already battled Rito. He reports to the emperor that Rito would be suited to marry Lala, after hearing Rito, who was actually defending himself instead of Lala, says that marriage is impossible unless it is with the person you love. Lala truly falls in love with Rito and decides that she wants to marry Rito after hearing what he said. Her father decides that, if Rito is able to protect Lala from her fiancés, then he can marry her, but if Rito cannot protect Lala from her other fiancés and meet the king's expectations, Lala's father will kill Rito and destroy the Earth.

Amaenaideyo!!

Plot

The protagonist of the series is the lecherous Ikkou Satonaka, who transforms into a super-monk (being able to perform mass exorcisms) by his lust for the girls he lives with (Note: In the anime, he transforms from seeing a naked girl). He lives in the Saienji Temple as a Buddhist priest in training with six other nuns: Haruka Amanogawa, Sumi Ikuina, Hinata and Sakura Sugai, Chitose Nanbu and Yuuko Atouda, each of whom represents one of the bosatsu of the six lower realms of the traditional Buddhist cosmology. Chitose is the main love interest and has a love/hate relationship with Ikkou which is somewhat typical in many other anime, involving numerous misunderstandings, beatings, and angry tirades where the male is clearly at a disadvantage to the female. A side effect of Ikkou using his ultimate power is that immediately afterwards he turns into an even bigger pervert than he normally is. The subject matter of the series is Ikkou's self-destructive power and the powers of the other nuns and their training to control these powers, as well as their (mostly non-romantic) relationships.

Agent Aika

Agent Aika

Plot

Tokyo has sunk into the ocean, along with most of the world, during a large-scale land subsidence. Aika Sumeragi is a salvager who works for a small company run by a father and daughter tandem. Alas, the company isn't exactly successful, and money is needed desperately. Thus, Aika accepts the very dangerous job of acquiring an artifact called Lagu for a hefty sum. The boss' daughter Aida Rion joins Aika on this particular mission, and the two set off.

Later on, Aika and Rion are captured by Rudolf Hagen — an effeminate but over-sexed man who wants Lagu and Aika (and just about every pretty girl) for himself. Hagen commands a huge battleship manned exclusively by droves of cute girls in mini-skirts (an example of what is often called "fan service"). Alongside Hagen is his obsessive sister Neena, who is jealous of Aika, as well as another salvager named Gust, who's also after Lagu and has a crush on Aika as well. When Aika's special bustierre is activated, she becomes a "superwoman" who can take on whole armies by herself.

• Aika Sumeragi (皇藍華), 26
  

She is considered to be one of the best in the business. She was raised as a test subject by her scientist parents who died in the catastrophic earthquake. She was protected by the bustier made by her parents and thus survived. She was then picked up by Aida Gozo, who raised her, and later on she works in Gozo's office as a Salvager.

Aika possesses a unique battle suit made out of 'ultranate' (or more accurately just "alternate metal" from the katakana オルタネートメタル), shaped into a golden bustier that transforms her into a dark-skinned and blue-haired woman with supernatural strength and resilience. But she dislikes the perfection attained by the transformation and tries not to rely on it. Although not used in the anime, in this form she is called Shivie Aika.

She is constantly fighting with Gust, who either tries to steal her bounty or hits on her. Aika will do anything to get the job done, even if it means sacrificing her morals.