Kaname Okiura, a student of Prefectoral Umineko Shougyou High ("Umisho" for short), joined the school's swimming club in order to learn how to swim, but the club is filled with weirdos, let alone teaches him swimming. Then, a sunny, happy-go-lucky girl named Amuro Ninagawa who was transferred from Okinawa joined the club. Her extraordinary underwater speed and unorthodox swimming style (plus her personal habit of nude swimming—a powerful magnet to teenage boys) surprised every club member, especially Okiura, because she reminds him of a mermaid-like creature he saw only once in his early childhood.

Akagi, after being rejected by a girl that he likes and punched by a rival, Rukawa, for accidentally stepping into his confession moment with the girl, wants revenge against Rukawa for various reasons. He and his teammates decided to challenge Rukawa and his team against a game of basketball in the regional tournament. Who will win this basketball game?

Kurogane Hiroto is in high school, where he is academically the top of his class but literally the worst in physical activity. Born with a weak body, he has no endurance, speed nor strength and Hiroto wants nothing more than to be a hero. Fate teases him by giving him phenomenal eye sight, which allows him to see well beyond anyone else in sports, but his body is not able to react to any of it.

He learns from his friend Shiratori, who wants to recruit him for the Kendo team, about a rumor about a ghost named Tojo Sayuri, who wields a katana and haunts an alley in the city. Half curious, Hiroto goes there only to find that the ghost is real and that Tojo Sayuri has been looking for a successor to her Sakura sword style for 150 years. Sayuri chooses him as the successor after being able to dodge her attack and forces him to learn the Sakura style. Even with the help of the ancient swordsman ghost, Hiroto has to overcome his poor motor skills in order to be the hero he always wanted to be.

A collection of stories:

1-3. Tadashii Ace no Kouryakuhou
a.) Hiroto Fujiki is the ace on his high-school baseball team. He takes an interest in one of his groupies, only to find out that "she" is not who "she" appears to be.
b.) Ayumu Tsumori is acting as the manager of his school's baseball team, and he borrows a book from his sister to help improve their chances in an upcoming match. Following the book's instructions, Ayumu starts cross-dressing for the team.
c.) Masaki Mizuhara fills in on his sister's baseball team, and catches the eye of the team's ace pitcher Hirona Fujiki, the sister to Hiroto from the first oneshot.

4. Hypnotism Trick
When Touri Hirahara is hanging out with his two friends Kashiwagi and Kunieda, Kashiwagi says he can use hypnosis, so Touri decides to fake being hypnotized. However, things get out of hand when Kashiwagi "hypnotizes" him into believing he's a girl.

5. Ani Tsura
Kazuki Hasegawa started drifting apart from his younger brother Kazuomi after he started getting interested in anime, specifically a certain magical girl anime he's particularly obsessed with. Kazuomi has been doing bad on his tests, so Kazuki agrees to dress up as Kazumi from the magical girl anime so that he'll put more effort into studying.

6. Khaki P to Sumire-hime
Rei Kawasumi is the vocalist of his high school band Violets, but they're not very popular, so Rei goes to ask the advice of Haruhiko Tsuchiya, a popular composer who posts his songs online under the name Khaki P. Tsuchiya tells Rei that to gain popularity, he has to not only cross-dress, but also sound and act like a girl.

7. Moshi Bare
Rin Aihara transfers to a new school, but tries to keep her intense love of baseball a secret.

From Adachi's Universe:

Slow Step follow the adventures of school girl Minatsu as she looks for a man and tries to stay on top at school. She's got the school bully to worry about, two potential suitors, a pervert for a PE teacher, and a gang of criminals in hot pursuit.

Japan's boxing scene has gone crazy since the commissioner keeps approving the world domination boxing's goods in monstrous forms. As more and more boxers gear up with deadly weapons, they violate the sense of justice in fighting, a masked boxer appears to stop that.

Katagiri Yuuji is a divorced, single, lazy gambling addict whose only real activity is playing Pachinko. He does it well enough to get by, but his life is more or less empty... until a young girl named Miura Satomi appears, who is a big fan of his. A classic story by Fukumoto about Pachinko, attraction, and the thrill of gambling.

From ShoujoMagic:
The two high school girls, Hanazono Mito and Tatsuda Seshiru, have been friends since kindergarten. But while Seshiru is an honour role student, Mito is constantly breaking school rules.

One day, Mito helps Seshiru evade the advances of the arrogant Ran, a rich boy and model who mistakes Mito's interference for jealousy (because of course every woman wants Ran for herself! Yeah, right). This lands Mito in hot water with Ran's fangirls, who later gang up to kick her ass! A new transfer student with wild hair is the one who saves her, but he won't tell Mito his name...!?

This collection, titled simply Short Program, collected stories by Adachi published between 1985 and now.

Volume 1 (from Shougakukan):
1. Kinkyou "Recent Times" [1987]
2. Kousaten mae (Before the junction) "The Intersection" [1986]
3. Shooto Puroguramu "Short Program" [1987]
4. Teiku ofu (Take off) [1988]
5. Chenji (Change) [1985]
6. Purasu 1 (Plus one) [1986]
7. Murasaki (1985)
8. Nani ga nandaka (What is what?) Part 1 [1985]
9. Nani ga nandaka (What is what?) Part 2

Volume 1 (from Viz)
Story 1 - Change
Story 2 - Take Off
Story 3 - Short Program
Story 4 - What's Going On!? (Part 1)
Story 5 - What's Going On!? (Part 2)
Story 6 - At the Intersection
Story 7 - The Current State of Affairs
Story 8 - Plus 1
Story 9 - Purple

Volume 2:
Story 1 - Before Spring Comes
Petit Comic April 1992
Story 2 - Subject - Wakaba
Weekly Young Sunday January 1995
Story 3 - A Stop on the Way
Shōnen Sunday September 1994
Story 4 - 5X4P
Big Comic Superior July 1992 - September 1992
Story 5 - 4 on the Richter Scale
Shōnen Sunday July 1988
Story 6 - Aim At the Ace
Shōgaku Shinen Sei June 1986
Story 7 - Spring Call
Shōnen Sunday April 1993
Story 8 - Spring Passes
Big Comic Spirits May 1993
Story 9 - The Road Home
Young Sunday October 1989 - November 1989
Story 10 - Sayonara Game
Big Comic 1991 Summer Special

Volume 3:
Story 1 - Clogs and Diamond
Story 2 - Where the Wind Blows
Story 3 - Angel's Hammer
Story 4 - Memory Off (part1)
Story 5 - Memory Off (part2)
Story 6 - White Summer / Shiroi Natsu
Story 7 - Square Ocean
Story 8 - Idol A (part 1)
Story 9 - Idol A (part 2)
Story 10 - Idol A (part 3)
Story 11 - Running God
Story 12 - Short Mail

Volume 4: Girl's type
1. Short story of a parasite (part 1)
2. Short story of a parasite (part 2)
3. Harsh life of a parasite
4. Love confession
5. Season
6. Two champions
7. Capricious Punch / Kimagure Punch

A collection of tales:

1. Slim Kannon
2. Inu de Warui ka!!
3. Obasan to Issho
4. Ganbari-Masse (The End of the World)
5. Grand Father
6. Takarazuka e no Shoutai (Invitation to Takarazuka)
7. 1 or W - One or double
8. Happy Talk
9. Uchi ga Megami ja!!

Daniel didn't want to be kissed by Kaname, while Kaname wanted to kiss Daniel. They played a tennis match in the Junior World Open to determine it and Kaname won! What will this mean for their future games? As their age, talent progresses, so do their stakes. It starts with a kiss on the lips, then nipples, then......

From StarryHeaven:
Hisui used to live on Kohaku Island, where she lived by the ocean and loved life. However, she’s changing schools and thus has to leave her best friend, Kairi the dolphin, behind… It’s at that time, Hisui meets the swim team’s hot Minato by chance…! Could this be a blooming love for the attractive boy, or a replacement for her dolphin Kairi?

Koichi Kawato is the new Japanese teacher at the ill-famed Futakotamagawa high school, whose baseball club is composed of thugs and bullies who have been suspended for a year from all school competitions, for causing a brawl during an official match. The newly appointed teacher finds that the club members left are only interested in women, smoking and doing nothing until, under Kawato's guidance, they discover a new dream called the Koshien. However, the road to the Koshien is far from easy as many obstacles await them.

Michi Yomogihara, a petite girl with slender legs and a running pace that puts motorcycles to shame. After spending most of her life abroad, she returns to Japan to pursue her passion and her idol. Upon coming face to face with said idol, however, it becomes apparent that things won't go as smoothly as she had hoped.

N/A

Matsuri is a girl like all the other high school girls. She likes boys, especially one called Wataru, but he hardly notices her even though she watches him like a crazy gal. "Tough girls aren't my type," he once said, and now even three street guys call her a tough chick?! Nothing too good to say to the wrestling Princess. Being this kind of princess is nothing to be proud of for Matsuri so it's a secret that she keeps from her school mates, because it's her father who wants to make her a wrestler...but what will happen when she's discovered fighting those three guys by Arata, the bad boy who can even "fight cows"? Discover it and keep track of Matsuri Special!

It's the story of a high-school girl, Hibiki, who falls in love with one of her teachers. The two start dating, but run into a lot of trouble. Hibiki's friends cover for her, and part of the story is also about them.

Also included is a story called Tomodachi Nante Iwanaide in volume one:

A short story about Kumiko's five-year unrequited love to Kanata. Kanata has always seen her as the girl who ate a beef bowl and a good friend. Will that finally change?

A collection of seven short stories and a collection of color pages from Rokudenashi Blues from Morita Masanori's career.

- Suberu o Itowazu (Setting Up to Fail)
A story of two stand-up comedians preparing to participate in a school festival.

- Bachi-Atari Rock
The pilot oneshot that would eventually lead to the creation of the one volume series under the same name, Bachi-Atari Rock.

- Let's Spend The Night Together
The story of Tatsumi Shindo, a wrestler coming from a Yakuza family. While he has no interest of having the life of a Yakuza, Tatsumi is stuck having his matches watch by his father and the rest of the yakuza and scaring his opponents. He hopes to be able to prove himself as a strong wrestler and not someone whose family intimidates the opponent.

- Jumpin' Jack Flash

- Synchronicity

- Mysterious Kid

- Stay Here

Randou Masashi, a self-centered, brash karate star, was the victim of a horrific bus accident that left him comatose, his face terribly disfigured by extensive burns.

Genius plastic surgeon Dr. Manabe saved Randou's life and went to work on his face, gradually reconstructing it based on a photograph found in the wreckage of the bus. But in a cruel twist of fate, the photo that the doctor used as his reference was not a picture of Randou, but of Rina Kurimi, the girl whom Randou has a crush on!

Tamano Kako and Marunouchi Gaku were the best of friends, but Gaku had to leave with his father to travel the world. However, Gaku promised that if Kako waited, he would come back in 10 years and they would go out. However, right after Gaku left the law of Takkoku was created: If you confess your love to someone, you must beat them at a game of ping pong; if you touch each other before the game, that person will be punished. If you win, regardless of the other person's feelings, you automatically go out. However, Kako is called the best ping pong player in Japan and Gaku has never played ping pong before AND he wants to be the one that confesses. How will these two people's love flourish under these conditions? Will Gaku ever be able beat Kako at ping pong?