Hanagasumi Highschool is located right in middle of Kabukichou, Tokyo's #1 red-light district. Because of this, the students are constantly robbed and harassed by yakuza, gangs, etc. In order to ensure the students' safety, the Student Council came up with one solution: befriend the legendary "Tiji-kun", the strongest man in Kabukichō. Two students, Motobu Tomoko and Akazawa Ryo, were assigned the task. But when they find out the true identity of the mysterious "Tiji-kun", having a peaceful school-life turns out to be harder than it seems.

Rin, Nerine, Itsuki, and Mayumi find a strange watch that transports them back in time, where they met Forbesii before he is married and has Nerine. While he is engaged to Ai, his maid, Sage, is also in love with him, causing a love triangle.

"In a certain wooden high school building, in a rural town... a strange student, and as it seems, a strange couple is enrolled."

Note: Original language image is unavailable.

A short oneshot by Haruse Hiroki about Maou from Maoyuu (http://mangapark.com/search?q=maoyuu-maou-yuusha) trying to shed her useless meat.

From Aerandria Scans:

Haruka, a devil who entered a school for Angels, made a contract with a strange angel Haniel, and became a knight of the school. On a mission to stop the prophecy of a “great catastrophe,” he cannot leave the school and instead has to cooperate with others, like Lilith, an angel with red wings to figure out just what is in store for them.

A 4-panel comic strip crossover series featuring characters from both "History's Strongest Disciple Kenichi" and "Skill Hunter Tekuni".

Tayutama Kiss on my Deity centers on Yuuri Mito, a student at the Sousei Academy and the only son of the man who runs the Yachimata shrine. At Yachimata, there is a legend of a deity named Tayutayu-sama who protected the area, but this deity and other so-called “Tayutai” have been lost in time. Mito and his friends discover a relic on the school grounds with mysterious patterns on them. Then, at the opening ceremony of the new school year, an equally mysterious girl named Mashiro appears before Mito. Mashiro is somehow tied to the relic and the legend of Tayutayu-sama… [Mangaupdates]

Two childhood friends Beckman Jouji and Kuranosuke reunite after not having seen each other for a while. Kuranosuke has the power to fly, but only when his best friend is by his side. Unfortunately, Miss Schrodinger has other plans for these two friends... A one-shot that shows the bond between two best friends!

I wanted to see you” are the words Kasugai Tenka wants to hear from a girl more than anything. And when the high school student hears it from Tsukimi, a girl literally out of this world, his life is about to get crazy. Tsukimi was a war general on the Moon, but she was exiled for the destruction she caused and her memory is wiped clean and she's changed into a bunny. She reminds Tenka that years ago, he fed her soba from his dad’s soba shop and that now that she's gained human form and her powers back, she wants him to be hers.

The story revolves around Taiga, who doesn't have memories from further back than two years ago when his parents died in an accident. He lives with his sister, Tsubame, whom he finds out is from outer space with the job of protecting him as he possesses the Origin Heart.

Manga takes place in Gensokyou, the setting for most of the Touhou games. Obviously Touhou games related.It's story of 3 fairies and their daily tricking to visitor of Hakurei Shrine, getting revenged, and so on.

About the student council president and his otaku friend(?) daily life in school.

From Aku Tenshi:

The world of Waq Waq is a place where machines attack the black-blooded humans, whose only defense are the Sakimori, humans chosen to partner up with the Goujin-zou, a race of machines that grow stronger when melded to humans. Shio and his Sakimori father, Al, upon entering a village, are attacked by the machines. As Al falls in battle, he leaves his son to become the new Sakimori and guardian of a mysterious young girl, believed to be god, found at the heart of the battle. Waq Waq is the story of Shio as he battles to protect what was entrusted to him by his father. Let the battle for God begin!

From AQUA Scans:
The “rabid dog” Fujishima, a juvenile delinquent, gets a second chance to live after being killed trying to save a tiny dog of a car.

From Tokyopop:
It is the year 22 H.C. (Holy Century). Shinjuku is populated by monsters and goblins. Humans are endangered and the town is rife with crime. Natsuki Sasahara is a rookie at the Police Company and a newbie bounty hunter. Scouted by her superior, Batanen Fujioka the werewolf, she is half-human, half-catbeast with magical powers, and is slowly getting the hang of the business...

The famous Gundam series marked top rankings in popularity for a long time. What was the secret? How was Gundam born? What’s the story behind Gundam? For the first time ever, we take a step out of the actual Gundam plotline, and we turn the perspective towards the production of Gundam; how it became a major hit surpassing its predecessor, Japanese Battleship Yamato!

This story is fictional, but the names of the characters are real, including the voice actors and director.

Kunimi Hiro and his best friend Hideo were baseball wonders... Until Hiro found out his arm was permanently damaged, rendering him unable to play anymore. A frustrated Hiro goes through the trouble of specifically finding a high school with no baseball team... Only to later on find out the doctor who examined him was a quack and his arm is perfectly fine. Hiro is quick to reinstate his dream: Creating a baseball team for his school and getting to face off against Hideo in the Koshien. The number one premier league for high school baseball.

What would you do if a tiger skin bikini-clad alien followed you to school every day? Poor Ataru's life has never returned to normal since volatile extraterrestrial princess Lum fell for him. Now an excruciatingly wealthy and genteel rival, Mendo, adds to Ataru's torment. Not to mention an unending stream of extraordinary classroom visitors and educational materials including incompetent cherry blossom spirits, a legendary nightmare-eating tapir, and a fourth-dimensional camera that breeches alternate realities.

Note: In 1981, this series received the Shogakukan Manga Award.
Won the 18th Seiun Award for Best Comic (1987).

The story of castle otaku, Ume, meeting a sexy blonde escort girl named Shigure...Is that really it or is there more? Read and find out!