Gag webcomic about a very, VERY bored Demon King and his "small" adventures.

Touka Aizuki is girl who can turn invisible and no one can see her except for one person, Ryoutarou Mimori.
Even though she is physically invisible, her love is completely visible!

From ADV Manga:

Private Investigator Loki is certainly an extraordinary fellow with an incredibly demanding profession. While his boyish good looks disguise his true nature, no challenge is too tough for Loki. He digs up evidence surrounding kidnappings, murders, suicides, and the like.

Not only is it Loki's job to solve mysteries, but he must also protect his own interests, namely his family, especially when those who want him rubbed-out enter the picture.

When old adversaries strike too close to home, Loki must prepare, not only to solve the crime, but to survive the vicious attacks! If the action's hot, you can count on Loki being there!

Life in hell is like peaceful, ordinary life in some ways. The kids live in a place like a dorm, and they go to school. However, every person that has fallen into hell has some kind of punishment. Eto Juri falls constantly into hopeless love, sometimes even with inanimate objects. Hida Mari is compelled to always eat carrots, which she hates. Ando Natsumi is ridiculously popular, so that even the textbook problems are about him. Soon a newcomer joins them, Nakamura Mikoto, who frequently mangles her words and becomes impossible to understand. The four of them live through their peaceful school life--in hell!

Volume 1 contains 1st part of Jigoku Koi Sutefu and also Obake Monogatari.

Note: Volume 2 is an original doujinshi by the circle Happa.

From Aerandria Scans:

Ever since ancient times, there have existed people who prevent the darkness of the night from swelling... They are the sorcerers, the only ones who have the power to oppose the darkness!

Fujimura is a loner delinquent at his school. Feared by his classmates since the first day of high school, he's had no friends and usually ditches class. But even his standoffish nature can't hold up when a class representative with a few screws loose comes after him! And two more class representatives. They're a few cards short of a full deck too. (Actually, he's more like the tsukkomi in a world of boke.)

> Part of the Kantai Collection series( http://www.batoto.net/search?name=Kantai%20Collection&name_cond=c&genres=;e9&genre_cond=and )

Nora is a demon who often doesn't acknowledge the authority of the Lord of the Hell. Because of that he is sent to the human world where he becomes bound to Kazuma.

Bouya Harumichi is a new transfer student to Suzuran all-boys high school, a place where only the worst delinquents assemble. Due to its large amount of delinquents who are hated by the general people for their inauspiciousness, similarly to crows, it is also known as "Crows High School".

Harumichi is an insanely strong fighter but has an irresponsible personality. How will he act in this new environment where everyone is a delinquent?

Due to its high popularity in Japan there are four extra manga stories related to this series and 2 live action movies.

Rabbit Foot is a oneshot about a treasure hunter from the sky who recruits a passerby to help her look for a treasured doll located in the world below.

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Source: japanzai

N/A

Two years after the sorceress Karla escapes, Parn and Deedlit continue to search for her. Meanwhile, war is brewing between two desert clans who were once one.

A long time ago, there was a tremendous war between the goddess of Creation and the goddess of Destruction, which made the earth tremble. Both goddesses perished in the war and created what people called a cursed land—Lodoss.
Something evil is happening in the land of Lodoss. Parn, a reckless young warrior, along with his new-found friends, takes on a quest to find out the source of this evil and becomes involved in the greatest epic struggle between good and evil since the war of the goddesses.

The year is 2061, when space travel is now possible and commercially viable, and the students of Caird High School embark on their Planet Camp.
But soon after Group B5 arrived at their planetary camp site, a mysterious and unforeseen sentient light sphere warps its 9 members into outer space, stranding them 5012 light years away from their home planet.
With the discovery of an old, unmanned spaceship nearby, the students must stay strong, manage their limited resources and remain united in the darkness of space, so that all of them can survive their long and likely perilous trek back home aboard the Astra.

A hopeless low-level orc warrior in an old RPG game finds his life turned around when he marries a beautiful elf and has a son who, unlike him, is incredibly handsome and a high-level warrior. As the orc tries to raise him as the ‘boss mob,’ his son runs away from home only to face a breathtaking journey in the wild world of games. He now must go after his son before his entire world spirals out of control. Korean Webtoon http://www.joara.com/webtoon/book_intro.html?book_code=3113

From TCManga Scanlation:

This series follow the adventure of young samurai.
In his adventure he finds friends and a man that related to his past...

A story about two people with mental problems protecting everything they left with their only method, playing ping pong.

A small chapter like memoirs of a boy and the girls who are in his like. Classic lazy good for nothing with 3 hot school chicks = GOLD!