A spin-off story focuses Kazuma Ikezawa (King Kazuma), Natsuki Shinohara's cousin, as he battles his way in the Oz Martial Art Competition.

Sadashima fell in love with a handsome senpai while she was in high school, but didn't have the guts to tell him before he graduated and moved away. When Sadashima graduates the next year, she follows her senpai, Shirahai, to Tokyo and manages to move in next door. She totally believes that the two of them can now hook up, and can't wait to knock on his door to 'coincidentally" find themselves neighbors.

She's flabbergasted to find a woman answering Shirahai's door, and then blown away to find out the woman is Shirahai! He's had a sex change!

NEETs are people who have chosen not to be part of society due to personal problems or just straight-out laziness.

This story is centered around a certain young woman who has become a NEET right after high school without even realizing it. In her case, though, it's not that she doesn't want work - but rather that there is not a single job out there which can fulfill her very specific criteria...

Oh, well...at least her mother understands her!

From FairGame:

"Live with Sincerity" is Natsuki Taiyou's motto. It's the first day of high school, Taiyou was heading to school and then he meets Hinata during the way there. He fell in love at first sight and suddenly confessed to her. Her answer was yes but then she ran away without saying who she was, but it turns out that she was his classmate. Taiyou felt a destiny between them. However, on the next day, she doesn't remember who he is. Why could that be...?

Watanuki Kimihiro is a high school student plagued by yokai and ayakashi – spirits with a strong attraction to him. The spirits are invisible to others and encounters with them are extremely troublesome. When he stumbles into a shop that grants wishes, however, events in his life promise to become more unusual. The shop is owned by Yuuko Ichihara – a mysterious and beautiful (sometimes playful) witch of many names and esoteric renown. For a price, she offers to grant Watanuki's wish to be rid of the spirits. The price, according to Yuuko, must be of equal value and so, as payment, he temporarily becomes Yuuko's part-time employee – a maid to be precise! Watanuki's job also seems to consist of small errands dealing with the supernatural including the household chores. His love interest Himawari Kunogi, and "rival" Doumeki Shizuka, occasionally join him in his work as per Yuuko's request. The three become increasingly close despite Watanuki's annoyance with Doumeki. Yuuko constantly refers to "hitsuzen", meaning inevitability, destiny, or fate, as being the driving force in the world. She states that there is no such thing as coincidence, and that every single action and decision is inevitable, because without them, other related events in the future could not happen.

From K.I.S.S.:

Coming to earth to live the high-school life he's always dreamt of, Hirito finds himself in a bathroom on top of a naked girl! It turns out she goes to the world renowned Konoeghara Academy. Hirito is shocked to find the school only consists of seven students in total! Why in the world does the one of the most prestigious academies in the nation only consist of seven pupils...?

Full-color one-shot about girls with guns.

Gorou has a crush on his older stepsister Haru. Unfortunately for Gorou, Haru happens to love teasing him sadistically in every way possible.
A 4-koma comedy about their wacky day to day life and interactions.

Hoozuki-san Chi no Aneki - Nano Shucchouban and 2 chapters of Hoozuki-san Chi no Aneki - Nano Branch are included in volume 3.

Prequel about Nishizumi Miho: her first meetings with her friends in elementary school and how she came to start avoiding tanks.

A gag oneshot about a guy working at a convenience store and his ne'er-do-well friend. Based on themes from the author's own life.

A bounty hunter wanders into a town taken over by outlaws, but his gunslinging skills seem unreal...

The author considers this to be a prototype to his later series, Fire Fire Fire.

When adults disagree, they go to war. Why should kids do differently?

Sanada Akihito, a student from Yotsuho Academy has been haunted by the angry spirit of a dead girl. In the exorcism that a friend was trying to do, the spirit manages to possess a girl from Akihito’s class and now that she has a body, she has worldly desires to satisfy in order to move, and Akihito just looks like her previous boyfriend!
-- Animexis

Rintaro Senkawa is a middle aged guy who got a little drunk one night and died. But that is just the beginning of this story as Rintaro finds himself most unexpectedly in Hell where he meets his guide, the devil Koyori.
Can Rintaro take his situation seriously enough to repent for the sins of his former life, or will he face the favored weapon of Hell- the spiked iron club?

From Anime Waves:
The woman Tsutomu encounters in college was older and smaller than he is, and for some reason, looks like the same girl in his dreams. The heart-pounding love affair between him and the "older woman" begins.

A very short, full color manga about 2 hunters trying to find fried tofu. From the Summer 2009 issue of Gelatin.

From the same Spring 2009 Gelatin issue as Ritou no Umi. Just a very short story about a girl trying to pay off her tab in an RPG-type fantasy world.

The year is 2130. After the third world war, large contaminated areas known as "Blackspots" formed all over Japan. Large Walls were used to quarantine off these "Blackspots". In time, signs of inhabitance appeared within these wastelands. Among the survivors who had been abandoned inside the Blackspots, labeled as "those who were unneeded", came forth possessors of uncanny abilities -- Fire, wind, brute strength... they were defined by their supernatural abilities. Others, fearful of their powers, expelled them and named them - Needless.

In a certain town there is a slightly odd maid café named Sasanqua. The most popular maid in the shop, Botan, has just received a love confession from the new girl, Momo, and can't help but have Momo on her mind. W-w-w-w-what if this is love!? E-even though we're both girls!? Why am I having these feelings!? This is a clashing-style maid café love (?) comedy.

Shinjou Shouryuu is a healthy 17-year-old high-school boy. Many of his kouhai wonder why such a great guy doesn't have a girlfriend. Ask him and he'll tell you that between school, work, and saving his kouhais from bullies doesn't leave him much time to go on dates. So he instead goes online to "F.I.L. GATES". There in the chat room his alter-ego, Kakeru, is infatuated with the girl called Hal. Hal sends a message reminding him that Sunday will be the six month anniversary of when they first met (online) and that she wants to meet him in person! And let's just say it's not your typical first date.

This manga is about the romance and complexities of an internet relationship.