From Dark Horse:

Alone in his dorm on a Saturday night, Nekomi Tech's Keiichi Morisato dials a wrong number that will change his life forever: reaching the Goddess Technical Help Line. Granted one wish by the charming young goddess Belldandy--a wish for anything in the world--Keiichi wishes she would stay with him always! Complications are bound to ensue from this; the immediate first being the new couple getting tossed out of the dorm-it's males only!

As the hapless student and his mysterious "foreign beauty" ride around looking for a new place to stay--risking the different dangers of seeking shelter with an otaku convinced Belldandy is an imaginary woman, and a Zen priest convinced she's a sinister witch--Keiichi's still got his classes on Monday morning! How is his new "exchange student" companion going to be received on the N.I.T. campus? A little too well for normal life to ever return...

Won the Kodansha Manga Award for General Manga in 2009.

These boys take a trip! Someone thinks it's a good idea to pretend to be drunk. But was it just pretend?

Shimonone Takara, a young weird, healthy boy, has always wanted to be a "Strange Human". "Strange Humans" are people who possess an extraordinary power that can't be used by normal people. One day, Takara meets a woman named Aria who belongs to an organization. What does she want with him? Is Takara succesfully becoming a "Strange Human"?

Hundred - that is the only weapon that can oppose the mysterious life form Savaga visiting the earth. The protagonist, Kirasagi Hayato, aims to become a Martial Arts Master using this Hundred. He managed to get into the battleship university Little Garden. "I wanted to see you, Hayato!" "How do you know my name?"
Around the roommate, Emil Crossford, who somehow knows him well, Hayato gets an uneasy feeling. What’s more, just after the entrance ceremony, he gets asked for a duel by the campus’ strongest martial arts master Queen Claire Harvey.

[from Nakama]

This is the peaceful surburban city of Yotsuba.

In an apartment where local students gather, uniquely individual residents get in an uproar over something, and in a drag bar in a corner of the shopping district, customers with problems approach Mama* for love advice.

Poor student Asahi, saving up on apartment rent, has accepted Ootsuka's proposal: if he gets along with his lover Tsukimi, who lives in the floor above, his debt will be forgiven -- however ... !?

Passionate conflict unfolds between boys at a certain corner of the city, day and night.
A great compilation of funny, painful, happy stories, including pictures specifically drawn for the occasion.

From Nakama:

Mitsuo's dream lifestyle with his beautiful, gentle boyfriend, Keiichi, has begun, but until now… they haven't had sex. Mitsuo wants to continue one step at a time, but Keiichi's guard is tougher than he thought, and he’s not reaching out to Mitsuo… !?

From Nakama:

As someone who does things like secretly reading BL manga, Satou finds himself imagining "entanglements" with men on a daily basis. However, since he also has a girlfriend, Satou convinces himself that this is a mere hobby, and he himself is not gay. Suddenly, he then finds himself roommates with his perfect, ideal handyman type, a man called Arihara. Imagining more and more indecent things, after a war with himself, Satou eventually comes to accept the romantic feelings in his heart. A BL story about complicated fudashi tendencies, with slightly tortured and realistic characters. *heart* Also, this compilation includes a pure love story of a librarian with glasses and a flashy high school boy!!

Set a couple of years after the ending of Breakfast Club:
Hiroki and Miki have settled down in their respective career paths - now a successful programmer and a researcher - when Hiroki suddenly decides that he wants to open a detective agency woth the help of Matsumoto and Iizuka. How will this self-proclaimed family business go?

Kuze Shunpei, a high-school student, is on spring break going to Hokkaidou when he loses his wallet. Stranded in the mountains with no money and his motorcycle having run out of gas, he passes out in the snow on the side of the road. When he wakes up he finds that he's been saved and brought to the Watarai farm, a horse ranch that breeds race horses. There he meets a host of various people, ranging from stable hands to the owner and his family (which includes four daughters). Shunpei is completely unsuited for the farm life, and his city upbringing contrasts sharply with the hard labor required to help the farm out. Yet despite all this, he tries his best to become accepted. However, he constantly gets into arguments with Hibiki (the second daughter), who views him as useless. Things come to a head when Shunpei scares one of the horses, who throws Hibiki (Hibiki is a rider). Ashamed, Shunpei flees back to Tokyo for the rest of the spring break. But back in Tokyo, Shunpei begins to long for the simple farm life. Will Shunpei ever be able to return and prove himself to be worthy of being a member of the farm?

Dragon Ball follows the adventures of Goku from his childhood through adulthood as he trains in martial arts and explores the world in search of the seven mystical orbs known as the Dragon Balls, which can summon a wish-granting dragon when gathered. Along his journey, Goku makes several friends and battles a wide variety of villains, many of whom also seek the Dragon Balls for their own desires. Along the way becoming the strongest warrior in the universe.

This series, a joint project between the rising star Nakamura Asumiko and renowned director of Shoujo Kakumei Utena Ikuhara Kunihiko, weaves a strange, surreal, and often dark comedy respendent with ruffles and lace. It is on the surface a farce about a young girl traveling with her lover, some sort of bear-type creature, but as to be expected of Ikuhara it's multi-layered.

The series is being endorsed by Baby the Stars Shine Bright, the leading name in Japanese lolita fashion, and the characters often wear clothes based off of those from the company.

Revolves around a student who happens to intrude upon a NEET detective and becomes her assistant.

Dreaming of being a woman that successfully balanced Love and Work, Mahigashi Minami heads to Tokyo to become a teacher. She faces hurdles at work as a rookie teacher because students have no faith in her. Then she met this first rate sleaze that is everything she hated but somehow his cooking has seduced her?! What will happen to Minami-sensei from here onwards? A hilarious homeroom comedy is about to start!

In a world where the number of women being born is decreasing and it's now mainly a male society. The scientists are trying to figure out a way to bring back humanity and fix this virus. One of the famous, upper class, bright, young and handsome scientist named Mikoshiba has come to the lower class area in order to help their research due to his interest in a cute, naive but average scientist named Niino who dreams of saving the world. Mikoshiba now moved in with Niino, has a theory in which he wishes to try out. His theory is that by them having sex and sexual relations that they might able to solve the world's problem!

Description by LuffyNoTomo

From Vices and Devices:

Hardworking, good-looking, and heir to daddy's company, Shimano thinks his life's just about perfect. Except that he's working from the bottom up in the company, and he can't seem to get along with Kurokawa, his manager. Competent but flippant, Kurokawa always seems to pay extra attention to Shimano, whether it's teasing him to make him work harder or covering up for his mistakes, which of course drives Shimano crazy. So he has Kurokawa firmly blacklisted until he realizes that Kurokawa's private life isn't a bundle of roses and begins to sympathize...and how are you supposed to hate someone you sympathize with, anyway?

Includes a crossover chapter featuring the main couple from Ameiro Paradox

A tale of a young hero on a magical journey.

Part of the Kantai Collection franchise.

After an accident our protagonist Amagi Kouichi becomes involved with Itanami-san a well known beauty of his school and secretly a vampire.

From MangaHelpers:

Narugami Kyoko is a 14-year-old girl with extraordinarily high amounts of static electricity. She shorts out electronics, shocks people, frizzes out people's hair, and makes their clothes full of static. Understandably, most people at school avoid her, except for her friend Hikari. This 4-koma style manga features her humorous everyday school life as she hangs out with Hikari, interacts with teachers, and tries to become closer to her other classmates despite her electricity problem! [tethysdust]

Devastated after the death of her only daughter, Eunjo joins a group suicide. Instead of death, she opens her eyes to the days before. Fate is cruel as she must now relive each joyful moment with the pain of knowing what's to come. As she flashes back into the past, Eunjo realizes her future is set in stone... or is it? Can she change this twist of time for the better somehow and save her loved ones?