Two story one-shot manwha.

Soundproofing System of My Room
The girl living in room 206 is annoyed with all of the sounds coming from the guy in room 207. The guy in room 207 is fed up with the noise coming from the girl in room 206. What happens when the two confront each other about their noise problem?

Extremely satisfied
An extremely bored girl calls someone to fix her tv.

From Fantasyshrine:

What happens when Nagasaku, the president of the most popular cafe "Lotus" and Kouzuki, the number #1 host of the most popular club "Adonis" want to rent the same 2.000.000¥ lavish apartment in the exclusive King's Hill? Room share, of course! Two unlikely roommates agreed to co-habitate the same apartment with very strict conditions. Will this arrangement really work out between these two semes...?

The 34th time Gyrus wakes up in a world ruled by monsters, he still thinks it's his first! Little does he know, he's stuck in a loop until he can survive long enough to collect the treasured “boss sword” from the Boss of Monsters and unlock the mythical Room of Swords before he dies agai-– whoops, too late! Well, here’s to lucky thirty-five…

Yukimaru and his friends investigate the Shiroyashiki as they look for their missing friends and run into the strange Room 303.

From Attractive Fascinante:

After his parents passed away, Aizawa Kyouichirou, a middle third year high schooler, rented out the 6LDK apartment in the form of room sharing as suggested by his guardian, Yagi Akira. The occupants were Rio Forest - a foreign college student, Mutou Keigo – a National Literature college student, Kawakami Shinji – a top host and Tachibana Jinpei – a workaholic. After they started to live with each other, they learned how to love and care for each other.

Two guys living in one apartment. Which kind of things would they share with each other, which ones would they keep to themselves? Would they laze around together, eat together, maybe cook together or even sleep together..? Find out for yourself with this heart-pounding room share.

Dowan starts living with Chamin, the object of his unrequited love. One night, Chamin goes into Dowan’s room with a different look in his eyes and starts demanding for sex. But… it’s just all because of a condition called “sexsomnia”? So whenever Dowan looks at Chamin who can’t remember the steamy nights they’ve shared together, his chest hurts…

The battle action manga tells the story of how humanity is threatened by monsters with overwhelming might called "Kijū." As the cities are destroyed and the people fall into despair, a rooster stands up to face against the threat. It is the story of how a single rooster saves humanity.

When Haruhei Sakura entered in an exam school, he fell in love with a girl who also goes to the same school. She is the daughter of a millionaire, but strangely works at a part-time job in a cabaret. He wishes for her to quit her job and also hopes that she will be intent on studying for the entrance examination of college with him.

From Sakura-Crisis:

One day, as Suzuri was walking past a river, she suddenly saw a HUGE peach slowly flowing! Due to the fact she has not eaten since the start of her journey, she decided to just conclude the huge peach was a god sent and did the most logical thing anyone would have done - eat it. However, just as she had her first bite, a young male jumps out of the peach! And before Suzuri knows it, she’s the 18th master to Momo who could do anything that Suzuri commands! What kind of danger would they encounter on their journey as they face a god that goes by the name Kyuui? And what dark secret does Momo have?!

Note: A redrawn remake started in 2015.

Girls go drinking, and make jokes, in this semi-daily 4koma manga.

1) Ropeman

2) Fistman
Kii-chan, usually the uke, figures it's time for his partner Shiro to see what's it's like... only he plans to use his hand instead!

3) Loveman

From Manga Box:
One day, a yakuza gang member is attacked in Roppongi, Tokyo. This is only a prologue to one man's revenge story, triggered by the events of twenty-two years ago. The flames of revenge burn in the darkness of the city. By the author of Hitoshi Tadano, Chief of Special Operations, Kimio Yanagizawa.

Asami is a girl who adores reading books in an old library in her hometown, almost as much as the person who works there. That person is the librarian Mizushima-Sensei, who is quite unusual, but also very popular because of his young age.

When someone begins to write graffiti in the books Asami loves most, it seems there’s trouble within the small library. Can their love of books and the dream of a wonderful library bring these two characters closer together?

Based on the PS3 RPG, this tells the story of the young, somewhat lazy alchemist Rorona. Rorona lives in the small kingdom of Arland, with her teacher Astrid and a helper called Hom. Unfortunately for Rorona, Alchemy is not as popular as it once was, and the government has given her atelier a three year review period to prove that it should not be shut down. Rorona lives peacefully amidst her numerous friends while she tries her best to prove the usefulness of alchemy. She works to complete the tasks assigned to her by the government, in addition to helping out various townspeople. Though she messes up sometimes, and occasionally slacks off, she’ll try her best to protect her atelier!

Boichi's take on One Piece between chapters 51 and 52 with a fight between Zoro and Mihawk. The one-shot was created in celebration of the series' 22nd anniversary.

Chitose Morishige is a 12-year-old seventh-grader with no friend in the world. Her father, Professor Morishige, builds a robot companion for his daughter to ease her loneliness.

The only problem is that Ichika Robata, the android, is built much too lifelike that Chitose believes she's a normal human girl who either ran away or was kidnapped by her father. Ichika attempts repeatedly to prove that she's a real robot, with hilariously disastrous results.

Former Rosa Gigantea and Shiori-san comes back. But they have come to steal Shimako away from Sei and Noriko.

The story revolves around Tsukune Aono, a boy who accidentally gets enrolled in a school inhabited by monsters and demons. He quickly befriends Moka Akashiya, a vampire who soon develops an obsession with his blood, and later meets other girls who soon take a romantic liking to him.

The story revolves around Tsukune Aono, a boy who accidentally gets enrolled in a school inhabited by monsters and demons. He quickly befriends Moka Akashiya, a vampire who soon develops an obsession with his blood, and later meets other girls who soon take a romantic liking to him.