A guy named Yuuto (an otaku) is interested in a web artist known as "Sayane." Recently a girl at school named Kashiwagi Kotone over-heard a conversation about Yuuto liking the web art of Sayane; but it turns...

girl loses her home in a fire and starts to live together with the guy who sits next to her.

Mizushoubai (water business) is the term for Japan's night life activities, such as fuuzoku (similar to prostitution but none of the illegal bits), hosting and managing (entertaining at bars), and kyabakura...

*Note: A revised edition was published in 2004 under a new name: Tantei Hakusho.

The astronomical event "Apple Moon" occurs once every 300 years. On that day, Sakuma, while visiting the ocean with his classmate to observe the event, ends up meeting a parasitic alien instead...?

It's about a perverted woman who is just recently married her college teacher and she can't help but conjure up dirty delusions.

On the very same day he moves into his apartment, preparing to start his college life, Kotamaru takes in a young girl he finds lying by the side of the road...

Shinta loves nothing more than girls, their school uniform, and their breasts. On the other hand, Shirasu was desperately looking for more members for the Fishing Club. Shinta, as the new transfer student...

Puruka is a parasitic alien who came to Earth in order to have offspring. After being saved by a busty high school girl named Fuuka, he begins to live inside of her head. It seems like he'll easily be able to...

Not only is Ueno the president of the science club at her junior high school, she's a genius inventor, too! However, despite everything she has going for her, there's one big problem she can't seem to solve: no...

Mahoro is a high school girl who loves her teacher. She studied hard to get her teacher to like her, but as a result, she is now a college student making her debut in a rural area, and is at a loss for what...