Yuuhi-kun planned to build a soccer field on the piece of mountain land that was his inheritance, but when his brother's elite Shuuiku Academy needed a new campus, Yuuhi was forced to reconsider. Now he finds himself both the landlord, and a student at the school! Needless to say, the other students are none too happy about being shipped out to the boonies, so Yuuhi – AKA “chicken-head” – has become the object of their collective ire. But there's something about the country bumpkin that has many students eyeing Yuuhi in a different way... a way that makes him very uncomfortable. Seems there's a lot more than “book-learnin’” going on at this school, and Yuuhi's about to get a whole 'nuther kind of education!

Harumoto Akira, a talented high school music student, descends into the violent world of Japanese speed tribes thanks to his obsession with Otoguro Yugou, the manipulative and enigmatic leader of the tribe, Red Kreuz.

Shoubu wa Toki no... Un Daro? is actually a series which Takaguchi co-writes with another artist. SEVEN is a solo work using many of the same characters, but takes place slightly later. It is about the members of the basketball team at a sports-based high school.
The first chapter focuses on a new character, Kiyoshi. Although he is attending a sports-based school, he is unable to play sports because of a childhood accident. He isn't dealing well, until Nana (Seven) takes him under his wing and asks him to be the manager of the club.
Nana is a senior and captain of the basketball team. Kiyoshi quickly falls for him. But most of Nana's attention is focused on his coach, Saegusa. The man practically built the basketball team from scratch and was manager at one point. He played basketball in middle school, but fell prey to some kind of chronic illness and wasn't able to play after that. All his life he worked with the goal that he would one day be able to play again. But suddenly, he realizes that it will never happen. He begins drinking and becomes depressed. Nana works to pull him out of it, and perhaps they grow too close...
from Tranlated Treasures

From Beautiful Soup:

Hokuto is a first year student at a famous athletic school... however, he doesn't happen to play any sports due an anxiety problem that he had developed. Now, after being pressured by his friend Yuri, he has become the manager of the basketball club. Strange things start to develop as he gets harassed by some of his senpai and begins to battle some demons...

1-4) Beautiful, Beautiful, Beautiful
After the break-up with his girlfriend, Kou is left very upset, which is when he meets Akio, Mai's brother. The two of them don't exactly hit it off, but there's a strange kind of attraction that keeps drawing them together.

5) White Fingered Demon
Junior is the son of an Irish mob boss in 1930's America. His father's lieutenant, Leonard Lang is like an older brother to him, but as Junior gets older his feelings for Leo are beginning to change.

Welcome to the future, in S.E. 156. Thirty years before our story begins, an ace space pilot by the name of M2 Rimstein was put into an experimental cold sleep until such time as he would be needed.

That time is now. He is unfrozen and put in command of the Dance Mania unit of three superb pilots, though two are rookies: Stellasta von Argyll, Malloy Chihaya, and Cloud Neelsen. Accelerated training commences, and new ships and gadgets are brought out so that they will have victory over their enemy.

Unfortunately, things go awry fairly soon when M2 is captured and brain-washed by a planet which sends him out to fight for the enemy. Malloy at first refuses to fight his commander, and then does so with the conviction that he can bring him home to the Great Carrier.

Bringing him home may be easy, but regaining his mind?

from Translated Treasures

Tsubaki Ooshima and Tsumugi Ooshima are very cool twins and gay. When they were students, they tried to have a sexual affair with Tougo Hayakawa, their classmate, but were found out. Exiled from their home by their father, now they are enjoying urban life traveling around in a camper and hunting boys...

The story of Kuraku Asuka, a tough junior high student who gets involved with the gang scene in the Kabuki Chou Ichibangai, a rough area of Tokyo.

A compilation of short stories including

• Nayamigoto, Attara ne?
Tenryuu's life is turned upside down when he has to take care of his giddy 10-year-old daughter, Mari. Mari is excited about the arrival of a new baby half-brother, but is worried about her father being on his own. Tenryuu is exasperated by Mari's picky eating habits, fickle moods and incessant questions about making a baby. Can father and daughter ever see eye to eye? (This is a Sakende Yaruze! side story featuring guest appearances by Shino, Nakaya, and the rest of the cast.)


- Half-Baked Scanlations

High-school student Nanamura Hikaru has little memory of his deceased father, a famous playboy actor, until his father's suave attorney, Shimogura, contacts him with the promise of a sizable inheritance. The catch? Hikaru has to make contact with his eight half-brothers - the fruit of his father's philandering ways.

From Aarinfantasy:
"When you want me to do work, please choose a sunny day". "Pray. The only thing you can do is to pray". Yakumo is a killer who hates fish and is afraid of water. He was bought from a Karachi Boss by the Isseikaiakeno Group. He only follows the leader's right hand man, Yoshitaka, and pesters him for a "reward" after every job. Both are drowning deeply in this mysterious relationship between a man and a boy-a hard-drawn gem of Roman picaresque.

Features characters from Loyal Dog and Kitanai Yatsu.

High school delinquent Mura must put up with the annoying presence of new stepbrother Subaru when his mother goes away on honeymoon. Dealing with gossip at school is bad enough, but Mura's life is turned upside down by a forbidden locker-room kiss and the publication of an incriminating photo snapped by BL fangirls.

Takaguchi Satosumi's first BL work.

Pink is the story of a young high school student named Usagi who is trying to become a porno manga artist. Who would've figured that out of a such a cute, innocent blond boy? Guiding him is Benio, the original artist of the story that Usagi is working on. Benio at first seems to just want to teach, but then finds himself getting a little too interested in teaching Usagi how to get into that, er, certain frame of mind for drawing adult porn.
Now enter in Usagi's father, an attractive, sexy man who is more than a little interested in Benio, and makes no move to hide it both from Benio and his own son. And who could resist that? Who would want to?

A young man comes to Tokyo to become a poet (he actually composes a lot through the book!). But one can not support himself with poetry, so the hero works for a half-legal firm running all possible errands. In the process he meets a lot of people, both men and women, who are strangely interested not in his rhymes, but in his ...body! Absolutely lovely tragicomedy.
~by DaRyu

Aida Rendou, ex-student and would-be poet, struggles to earn a living in the big city. As a talent scout for the adult video firm, M+ Productions, he hunts for potential actresses but it's not enough to pay the rent. So boss Nanazuka offers him extra cash to use his body to seduce men and women alike. Michiru, a spoilt young woman with Yakuza connections, comes up with what appears to be a perfect solution: she'll be Rendou's patron in return for him working as her full-time host. Will Rendou finally be able to write his poetry? Or will he end up corrupted by the amoral dog-eat-dog world around him?
~by Lyrebird (Half-Baked)

Yukimi, a chubby junior high student, discovers a magical dumbbell that can transform her into Miyuki, a beautiful and slender young woman in a revealing costume. But she must do battle with an evil three-star chef who tempts young girls with calorie-rich treats and dubious weight loss products, and keep her identity secret from her family and schoolmates.

There is a sequel, "Miracle Dieter Miyuki VV." It is being serialized in Shimbun Akahata. As of Oct 2009, there are no plans to publish it in tankoubon format.

From Blu:

Watch as the worlds of anime voice acting and high school hockey collide! The boyishly handsome Shino is greeted at his front door one morning by the seventeen-year old son he didn’t know he had. Suddenly pushed into the position of being a father and a provider, Shino starts taking on new acting jobs, including boys’ love drama CDs, and the separation between art and life narrows significantly when his new coworkers start taking quite a bit of interest in him! As if that weren’t enough, his son Nakaya is a handful in and of himself. An aspiring hockey player with a bit of an attitude problem, Nakaya has a lot of growing up to do, and Shino is in for the long haul.

The sidestory, Nayamigoto, Attara ne? is compiled in Koimachi tankoubon.

University student Sekiguchi Toshihiko's life takes a turn for the bizarre when he begins working as an accounts clerk with Galaxy Planning, a small firm that serves as a front for organized crime. His boss is the ultra-cool Aguri, a devil-may-care yakuza with a passion for gratuitous violence and constantly harassing his favorite employee.