From Mangascreener:

The only common feature running through these stories is a grown-up protagonist somehow coming face-to-face with his childhood past, in a testament to the loss of youth, the disillusionment of growing old, and nostalgia for better times.

In the Adachi pantheon, this is a rare diametric view of his eternal theme of "youth," in this case youth as seen through the lens of the past. It's a powerful statement from Adachi that might even be an acknowledgment of his steadily-creeping age.

What is impressive about these stories is not the plots or characters themselves, but the absolutely perfect way he tells them, another facet of experience that comes with age. Most of the stories may require multiple readings to fully appreciate the airtightness of the plot and visual motifs."

Oneshot about Takeshita Mari, a 3rd year in Junior High School who has a crush on her teacher.

From Tokyopop:

Daphne in the Brilliant Blue take place in a near future in which the remaining population lives in underwater cities, with waterways as streets. Years ago, while conducting underwater experiments, all contact with the surface was cut off. With the remaining human population now living underwater, The Deep Sea 9 Cities Association represent the last hope of mankind. Ai Mayuzumi is the daughter of the head of the research lab, and is an expert water jet bike driver. When the terrorist group Error, attacks the city, Ai becomes involved with the counter-terrorist group Stelnas, comprised of an all-female team, and led by a girl named Kei, and asks to join them. The group initially resists her efforts to join, but a surprising "gift" that Ai possesses, along with the way she handles herself during a kidnapping attempt, eventually sways the opinion of the members of Stelnas.

Akira and Yuujirou, who are childhood friends, both love to surf, and both have an unrequited love for each other. This is because after Yuujirou kissed Akira a year ago, she slaps him! Now all he does is bully Akira, whilst Akira has feelings of regret for slapping him!

From Shoujo Crusade:

For the sake of getting back the present she is going to give her admired senpai, Yuzuki agrees to date the merchant Riichi. Is that a good decision or not...

Gomennasai.
A student hooks up with a woman for casual sex. They have an awkward meeting sometime afterward, in his classroom... because she's a substitute teacher.

Bousou Kiss

"...Gokko"
Brother and sister. A couple plays an incestuous game where they do perverted things to each other until one gives up.

Otoshigoro

One Step

Ferris Wheel
Sudo-san has a lover, who is two years younger than her, Takahana-kun. After receiving the news that Takahana-kun is going to be transferred, she thinks about how to work out their relationship.

Yume Musubi to

Hakuchu Yamu

Yoshi x Yoshi

Only One
Izumi Taeko is a weird and flighty girl, rumor has it you'll only need a coin to get your way with her, but is this true?

- Animexis

Reset

Ryu Sugahara's story collection has everything for the hormonal fangirl- pleasant art, ample sex scenes and cute characters. The fantasy focuses on the relationship between Matsuoka and Nagase, two street-urchins who meet each other at the garbage-dump one day. Fluffiness abound with an occasional dose of angst.

From Fantasyshrine:

Since he first met Baron Kuroba, Seiji has been secretly in love with the master of the Kuroba Manor, where servants were rumored to be attacked by a vampire. However, Baron Kuroba only sees Seiji as a lap dog that needs to be disciplined for his carnal pleasures. How can Seiji convince the baron, who doesn't believe in love, to love him back?

This is a one-shot chapter from Oshiokiyo! an anthology of hard-yaoi BDSM borderline porn. Featuring a plot about two brothers from a small-time yakuza family whose parents are murdered by a rival family. Older brother becomes just like the enemies in the process of getting his revenge on them. Older brother-younger brother relationship devolves into top/bottom BDSM situation.

From Midnight Scans:

Kitou Hijiri, a student, confessed his feelings to a Chemistry teacher named Nakatani Ayano whom he had fallen in love with 8 years ago. Somehow when he was young, he lived beside Ayano and bear feelings for her. Ayano, in turn, could not resist Hijiri’s determination and strong feelings towards her. What will be the ending of their taboo love?

Susannah is an editor. During a party at a book fair, she sees a portrait of a woman who is wearing the same red necklace as her. Intrigued, Susannah steps closer to the painting, only to be engulfed by a mysterious light that transports her 100 years back in time! To make matters worse, Kane Wilder, CEO of an IT company, who is convinced Susannah is his brother's mistress, accidentally travels with her!

English publication via Renta!

Six stories by Rumiko Takahashi:
- One Day Dream
- Graffiti Pop
- Dutiful Vacation / Giri no Vacance / Holiday-In-Law / A Compulsory Holiday (婆婆的假期)
- Help
- Red Bouquet
- Permanent Love

[From Nakama]

Trying to avoid being so popular with women, the legendary girl-magnet Takeuchi transfers to an all-boys school. Once there, he can’t help but wonder why Iida, who he’s known for a while, always eats his lunch early. At first he only thought him a little strange, but before he realized it, he found himself following him with his eyes all the time. The two become close by Iida sharing his bento. Being with the fun-loving Iida every day turns Takeuchi’s dull days into fun ones?! A series about the tantalizing love between a wholesome young man sharing his bento with a girl-magnet, a gorgeous masterpiece compilation including an extra, and one of the first pieces written in the name “Uchida Kaoru”!!

Long ago, a witch named Red Ridinghood fell in love with a man named Wolf, but he broke her heart. She set a curse on their descendents… should a Wolf ever fall for a Ridinghood, they will turn into a wolf!

N/A

From Manga Abyss:

The 'starved wolf' man and 'little red riding hood' Shouji loved each other?

Also included in this compilation:

• Akuma na Cupid
Ashiwara Iroha has a crush on Suzuki-san. In order to make him like her, she climbs up a tree to try to touch the "legendary mark" at their school. He is supposed to fall in love with her if she does, but instead of touching the mark she falls from the tree and into Shindou Kaname's arms. He tells her "leave Suzuki to me" and becomes her devilish cupid...

From Futari wa Pretty Anon:

Chino Houjo is just an ordinary high-school girl. But when her childhood friend Souma is suddenly attacked, she’s forced to purchase a ‘prince’ from the alternate dimension Albox to save his life. And now she’s got to go after the person who’s stolen Souma’s soul?!

INSATIABLE PASSION

Kitty was left heartbroken after her affair with Jake, who was far above her status. After spending their first night together, he suddenly seemed to become a different person, and then married another woman! "I'll never come back to this place," she vowed. Time passes and Kitty makes it big as an actress. However, hearing of her grandmother's death, she returns to her hometown for the first time in 8 years, only to bump into Jake! "You finally came back," he said. Jake, a man who left a deep scar in her heart... But why does her heart flutter when she sees him?

This short oneshot tells the adventures of Alice, but with a slightly darker tone.

From Illuminati-Manga:

Alice waits with her mom in an elevator. All the men look at her mom's breasts. Alice doesn't see the reason in it. Although, for some reason, it doesn't seem right.

While pondering the reason why, she realizes she's in another world just like that famous protagonist in that one story.

There, strangely enough, she too has the guys' eyes glued to her, for she was an adult woman just like her mother.

This is a French publication.