From Hoshikuzuu Scans and Starry Sky Scans:

"Having sex without love. All the gay people do this, right?"

University student, Kawamoto has a string of one-night stands. One day, he meets a university employee called Kuroki, and he tries to bed him. "Do you always do stuff like this?" Kuroki has been in love with one of the school professors for 7 years. "I'm happy just being by his side." That unwavering dedication captures Kawamoto's heart... If love is solely loving someone, doesn't that just invite pain...?

The long-awaited young love story by Nanameguri!!

From Hachimitsu Scans: One-shot manga anthologies featuring traps called Josou Shounen (Cross-dressing Boys) since July 2010. There have been 15 volumes published to date. Each volume carries a subtitle. They are: 1. White Group (Shiro-gumi) 2. Peach Group (Momo-gumi) 3. Princess Group (Hime-gumi) 4. Blue Group (Ao-gumi) 5. Red Group (Aka-gumi) 6. Cherry Blossom Group (Sakura-gumi) 7. Plum Group (Sumomo-gumi) 8. Melon Group (Melon-gumi) 9. Apple Group (Ringo-gumi) 10. Satsuma Group (Mikan-gumi) 11. Grape Group (Budou-gumi) 12. Banana Group (Banana-gumi) 13. Plum Group (Plum-gumi) 14. Watermelon Group (Suika-gumi) 15. Ribbon Group (Ribon-gumi)

Hiyori, a small and timid girl, goes to school for the first time in a year since an accident left her hospitalized. Follow her as she struggles with her social skills, tries to make friends and maybe even a little bit more...?

Edo, 1855, in the Hill of the Three Hundred district: Japan's isolationist foreign policy has been lifted, and the era of the Bakumatsu has begun. The samurai Ibuya Manjiro, 26 years old, has just begun his career as low-ranking retainer to the minor daimyo Lord Matsudaira. Tezuka Ryoan, 29, a disciple of Dutch medicine, has just been accepted as a student at Teki Academy in Osaka. Each has a temper to go with his talent, and in a time of brewing upheaval the two are not slow to find trouble, which brings them together in spite of their mutual dislike. Tezuka is called in one night to sew up Ibuya after an illicit duel; a few weeks later, Ibuya finds himself the only thing standing between Tezuka and a gang of swordsmen sent by the head of medicine for the Shogunate.

Note: Won the Shogakukan Manga Award for general manga in 1984.

An anthology comic of Choujigen Game Neptune by various mangaka.

Kohinata Kanade is a second year violin student at Seiso Academy's Music Division. She lives together at the school dorm called Linden Hall with her childhood friends, brothers Kisaragi Ritsu and Kyouya. They practice intensively day after day at their orchestra club, aiming for victory at the nationwide music concours. However, one day Kanade is told by a boy she doesn't know "Your performance has no flower"?!

A collection of stories.

1. Sotsugyou Kinshi (Graduation Prohibited)

2. Black Yagi to Gekiyaku Madeleine

3. Sakashima Cinderella (Backwards Cinderella)

4. Mayonaka Gravity (Midnight Gravity)
Sayumi and Jun have been together since high school. Now that Jun is in college and Sayumi is working, it's hard for them to find time to spend together. As Sayumi grows increasingly suspicious and demanding, Jun struggles to placate her, but their relationship is gradually falling apart...

5. Yuugure, Orange, Saku Hana wa (Dusk, Orange, the Blooming Flowers/Love, Heat Haze, End-of-Summer Regrets)
Megumi is rumored to have a thing for girls and, shunned by most of the school, has become something of a quiet outcast. One day, though, she catches the attention of Asuka, star of the girl's basketball team. As they become friends, Asuka is astonished to find another feeling blossoming within her heart...

6. Gekiyaku Madeleine to Black Yagi

The complicated story of a young man who goes to work for a lingerie company.

At school, Aiko discovers that all the girls in her circle of friends have already had their first menstruation – save her. After going home to her room, she reads up on menstruation and in frustration punches herself in the uterus. This seems to "awaken" Ma-chan, Aiko's anthropomorphic vagina, who begins coughing up blood. Ma-chan introduces herself and says that she's been with her ever since birth and from now on she's going to assist in her journey into adulthood.
The next day at school Aiko tells her friend that she's now one of the gang.

Note: Aiko no Maa-chan, was cancelled by Comic Zenon from fears of its publisher that the manga could be considered an “harmful publication” under the “Tokyo Metropolitan Ordinance Regarding the Healthy Development of Youths”. She decided to publish her manga through a successful crowdfunding campaign on Fundiy. Thus Aiko no Maa-chan will be published as one volume in 2015.

Yotsuba is a strange little girl with a big personality. Even in the most trivial, unremarkable encounters, Yotsuba’s curiosity and enthusiasm quickly turn the everyday into the extraordinary! Join Yotsuba’s adventures as she explores the wonders of the world around her.

Note: Won an Excellence Award for Manga at the 2006 Japan Media Arts Festival. Was nominated in 2008 for the 12th Osamu Tezuka Culture Award, the Eisner Award "Best Publication for Kids" category and was runner-up for the first annual Manga Taishō award in 2008. Was nominated for the 20th Tezuka Osamu Cultural Prize in 2016.

To the usual students in school, Haruto Usami is the epitome of heartthrob material. Quiet but athletic, has pale hair and endearing eyes, it's no wonder girls can't stop fawning over his rabbit-like charm.

For Hibiki Aizawa though, the pure and innocent-looking herbivore hides a cold-hearted self-righteous personality that others have yet to see.

One day, Hibiki receives a message that gets her concern. Before she realizes it, she's at Haruto's front door! As much as she wants to hate the sleazebag playboy, Hibiki eventually realizes she still can't leave her childhood friend all alone. Rabbits are prone to die from loneliness after all.

1. Careless Cherry
The popular and rumored school idol Niko, is unlike his outward appearance. He's a cherry boy. One fine day, the public morals committee member Monaka says "be my partner" and suddenly attacks him! How will Niko react to his first time...!?
(From Iridescent Scans)

2. I Could Just Eat You Up
After getting drunk, Kamiya did something unexpected right in front of Natsume. The next day he acted as if nothing happened, but Natsume couldnt stop wondering. But what will happen when the same weird thing happens again? Kamiya wont tell him the reason, can Natsume figure it out??

3. Alcohol Trap
Two students who are complete opposites from each other are brought together by their circle's alcoholic escapades. One of them always gets wasted while the other takes care of the drunken fellow. Will their routine ever change?

4. Once You've Fallen in Love
Micchan has always known Sawa best. That is until Shiroi starts hanging out with them regularly, and Micchan witnesses changes in his best friend's behaviour. What is this notion welling up inside him?

5. Nemurenu Yoru ni Nomikonda Hoshi
Sawa is confessed to by Shiroi, a kouhai in his art club, but as he struggles to come to terms with being confessed to by a boy, Shiroi manages to act entirely too normal. Does Sawa really matter to him all that much?
(From Vices and Devices)

6. Extra
An episode of Niko's and Monaka's everyday life.

Kohinata Ayumi is about to go on a date with her boyfriend Shiro, but then she gets a mysterious call from one of her classmates!

Suddenly, she wakes up in someone else's body!?

The espers of Academy City are classified into six levels, where "Level 0" lacks power while "Level 5" possesses an overwhelming amount. Of the several million espers residing in Academy City, only seven of them have attained Level 5, and ranked highest among them is the one known as Accelerator.

Toaru Kagaku no Accelerator focuses on the strongest Level 5 after he protects the cheerful Last Order at the price of much of his power. Recovering at the hospital, Accelerator has led a relatively quiet life until he ends up saving the life of Estelle Rosenthal, a mysterious girl carrying a photo of Last Order. Unfortunately, Accelerator now finds himself dragged into a new conflict in the form of a sinister organization called Disciplinary Action which plots to use Last Order for a dangerous mission. Now that they have set their plan into motion and are in pursuit of the young girl, it's up to the world's most powerful esper and his newfound companion to protect Last Order and defend Academy City in the process.

Shiho, Cocoa and Himeka are three sisters who live together with their protective older brother. As their parents are off traveling the world, the brother has taken on the parental role as well as taking point in the bakery that all the siblings operate. As a result, the brother has developed a sister complex, becoming, at times, overbearing to Shiho, Cocoa and Himeka. This is a comedic story about their little weird family.

From Sura's Place:

The 12 animals of Zodiac are given powers to rule the time. However, the dog commits suicide, thus removing himself from his role. The rat and the cow attempt to find the 13th animal, the cat, to replace the dog.

However...

The story is canon to the original storyline and features Kojirō Shinomiya as the main protagonist. The series focuses on both his life after he graduated from Tōtsuki Culinary Academy and the events after the Training Camp arc with Megumi and Souma.

From Liquid Passion:

When business leads Haruna to Nakagawa's family-owned brewery, it's love at first sight for Haruna. Too bad that Nakagawa and his crotchety grandpa can only say "not interested" to his offers. Will Haruna ever secure the distribution rights to the best sake in town? And more importantly, will he manage to win over the cantankerous brewer's grandson?

A terrible creature has been plaguing the community: a man with a fishbowl for a head. When he attacks someone, the goldfish leaps out of his bowl and drinks their blood. The victim is irreversibly transformed into a goldfish! This terrible crime has happened to high-schooler Kousuke's little sister. With no other option, he takes care of his goldfish-sister as best he can.

One day, he comes across a strange girl named Ringo, who wears a school swimsuit, carries an umbrella, and keeps a gun hanging around her neck. Ringo is an apprentice blood diver, and the gun is her way of shooting herself into the wounds of the fishbowl man's victims. If she can get to them in time, she can prevent them from turning into goldfish. Ringo's mentor, Ichigo, says that she's heard of a way to turn people back from goldfish into humans. Kousuke is determined to help Ringo find a way to help his sister and the loved ones of his friends at school who have met the same fishy fate!

A direct continuation of Chimoguri Ringo to Kingyobachi Otoko.

A collection of original short stories by Mebae.