Following the untimely passing of his childhood friend and his little sister, Io Haruomi is constantly haunted by their deaths, forever feeling powerless and unable to escape the guilt he feels for letting them die. Despite this, he continues to press forward, attempting to enjoy an ordinary life. He goes to high school, hangs out with his friends, and generally passes himself off as a normal 2nd-year high school student.

One day, however, Haruomi encounters an "Eda", a girl with glowing red eyes and demonic powers. Amidst her escape from the "Seven Great Gospel Organizations", she reveals that he too is an Eda, and the powerlessness he feels is completely unfounded. Before he knows it, Io Haruomi is thrown into the middle of a battle between man and devil.

And as his eyes too begin to glow red, the side he is on is no longer so clear.

One man has three wives? What’s the deal with this greedy guy?

Beautiful appearance, beautiful food, beautiful legs, beautiful voice, beautiful skills...
Which beautiful boy is your type...?!

The trouble that arises at Private Yubiwa Academy is rumored to be resolved informally, secretively and for free, by the mysterious "Pretty Boy Detectives."
In order to search for "a star she saw 10 years ago", second year Mayumi Doujima opens the door of mystery to the 5 beautiful boys!

Sengoku Rance is all about the most perverted hero of a fantastical world. He journeyed to Japan in order to have his way with the ladies of this land, and ended up as the secret ruler of Nobunaga House. In the process of conquering Japan, he unwittingly play the dupe for an ancient demon sealed in this land just waiting to be freed. Nevertheless, be it either demons or hostile forces, none shall stand between Rance and his ladies.

Wazu was an ordinary townsman who shut himself off in the “mountain” because of an unfortunate course of events. After 2 years, he decided to come down from the mountain to meet with people. But there were various misunderstanding about the “mountain” which he shut himself off in. And then he repeatedly had encounters with people. And after that...

Lisa moves to Tokyo for university, and she finds herself living with some strange people! The Russian girl Irina explains that the inhabitants work on a time machine together. The other people include Kitsune (who wears a fox mask), Hime (who cooks), and Aki (a self-declared scientific high school genius). This 4-koma style manga follows Lisa's bizarre new life.

Yugami Makoto likes to travel to different Hot Springs. On his 100th visit to a Hot Spring he meets a beautiful foreign girl in the bath. Stunned by her beauty, he immediately falls for her. But there is more to the girl than meets the eye. And why is Makoto forced to work at the Inn afterwards?

One day while walking home from her job, Kurumi Akino finds a wounded young man, and saves his life. He mysteriously disappears after that, and leaves only the name “Hakuron”. Next thing she knows she’s been kidnapped from her school, and is on a private jet with that man, heading to China. It turns out she saved the life of the most infamous mobster in Hong Kong, and he wants her to stay with him.

Kakinozaki Ayana-sensei and student Kagami Yuuki move into a room in the girls dormitory for the new (co-ed) high school semester, requested by Ayana-sensei and approved by the schools' principal. As one would guess, no one can find out he's living there so other than school classes, he has to cross-dress or else he'll be kicked out of school and dorm.

Inuwashi Momo, a lovely and delicate girl living with her handsome brothers who dearly take care of her since their parents death. Of course, she loves them... maybe too much...
In order to protect her kingdom, Momo acts lovely, puts GPS to track them and does whatever it takes to get rid of girls interested in her brothers like a soldier. But one day, Momo meets a boy who wants to overthrow her perfect kingdom !

From MangaHelpers: In a hidden school surrounded by mountains, young ladies of good families are taught everything a high class lady needs to know. They are also completely cut off from the outside world, keeping them sheltered and innocent. However, a problem has come up recently-- more and more graduates are failing to cope with the modern world after graduation. To deal with this problem, they've decided to kidnap a male commoner student, and enroll him as a student. They hope that this will be a gentle way to introduce the girls to the outside world. Kagurazaka Kimito is chosen for this dubious honor, mostly because he seems utterly average. However, the school leaders also seem to have concluded he's a homosexual with a muscle fetish. When Kimito hears that the alternative may be castration (to protect the girls' purity), he eagerly plays along with this misconception. Now he'll just have to survive the attention of many high class young ladies that are completely out of touch with the world! [tethysdust]

Spiin-off series based on Komi Naoshi series Nisekoi.

Yoshio Tanaka gets reincarnated into a fantasy game world, with healing magic as a “cheat” ability.

Alternate Story of Hentai Ouji to Warawanai Neko.

Special Edition of Fuuka.

Released in April 2018 as a standalone project. Featuring main female characters from Seo Kouji's popular series Fuuka in alternative timelines with the Main Character of the series Yuu Haruna!

Long ago, the God Aigis sealed away the devils that caused havoc in the human realm. Now many thousands of years later the Demon God, Tiamat, has come to the human world seeking to destroy all humans using the very devils that Aigis had sealed away so long ago. One of the first to fall was the imperial capital where their prince, who is descended from heroes, had no choice but to run away and watch as his homeland burned. Now he must do what he can to survive Tiamat's onslaught and recruit allies in order to take back his kingdom.
Will he live to see the day his kingdom is free of Tiamat's hands?

Based on an otome game with the same name. Igarashi Yuna is a transfer student in St. Louis High. This manga covers each of the guy's routes in each chapter.

In the series:

V.1 - Storm Lover

V.2 - Natsukoi!!

From Condensation: Momo Yamada wanted to be a flower when she grew up, but she's blossomed into nothing more than a rather homely teenager. When her grandmother passes away, Momo becomes a live-in maid for the two sons of a elegant fashion designer. After the eccentric eldest son, Ranmaru, gives Momo the makeover of her life, she discovers that her mother was a legendary Hanabito, a beautiful woman who has a divinely intoxicating scent that draws men to her like bees to nectar. What's more, Momo learns that she, too, gives off that same irresistable aroma. Although she and Ranmaru have fallen in love, their relationship now must withstand constant assault from handsome boys and men who desire to abduct and seduce Momo. *Also contains the following stories: • Akuma no Himegimi (The Devil and the Princess) in vol. 1 • Kamisama Shikkaku (God's Disqualification) in vol. 1 • Hanamaru Scoop! (Flower Garden Special Review) in vol. 2

Shinichirou decides to look for a job in order to pay his rent, and his teacher suggests that he work for someone at their house, doing housekeeping. However, the person who hired him was Sakuya, a girl who is the 37th head of the Shimazu family, and her job is to exorcise and eliminate unwanted creatures. Shinichirou accidentally releases one of the creatures that Sakuya captures and they cooperate to catch it. A story of comedic creature hunting begins!

Note: Read this if you are confused about the chapter numbering.