Young Hoon, a nerdy guy who always fails in love. He has problems understanding woman's feelings, hence always getting dumped by his girlfriends. But one day a mysterious guy appears and gives him special glasses, these glasses will change his life forever.

Masumi is dating Tobita who under innocent face hides a burning desire for being abused. Catering to his needs Masumi gradually gets pulled more and more into the twisted relationship, fascinated by the feeling of sadistic satisfaction from dominating Masumi.

In the story, for generations the men of the Susuhara family have, upon reaching a certain age, left home and gone their own way, living alone with no one to depend on until they are acknowledged. The protagonist is a high school student who has left home and is comfortable at his new school. But there's a strange girl named Toe Kurokami. She carries what appears to be Japanese doll, and he's sure its hair grows and it whispers things. Meeting her might be his destiny.

Dead man's questions tells the story after Kira Yoshikage's death.

From ShoujoMagic:

Karate girl Seri tries to kick away her past in order to catch a new guy at a singles party, but Tamaki, a childhood flame from her old karate dojo, shows up to show off and makes her heart pound. Their reintroduction leads to a karate challenge, and if Seri loses, she must become Tamaki's "toy"...!? It's a game of love with more rivals and obstacles (and sex!--LOTS of SEX!) than either Seri or Tamaki could have foreseen!

Includes extra stories:

(Vol.02) Virgin Beast - Dumped for being a virgin, Katsuragi Mio decides to ask Virgin Killer, Tsukahara Masaho for help.

(Vol.03) Scarred Innocence - Naive Moeka wants to fall in love but Kamiya Shun might not be the nice guy she thinks he is.

(Vol.04) A Girl's Mischief: Love's Supreme Principle - Renai Shijou Shugi sidestory.

(Vol.05) Rescued Letter, Complicated Love - Nozomi delivers a love letter to Shigeyama Itsuya from her friend but...

(Vol.07) Ribon

(Vol.08) Flower of Despair, Thorns of Pleasure - Renai Shijou Shugi Sidestory. Takarai Kou's point of view.

This is the mysterious story of Futaba Kazuma's first patient. At 18, Futaba Kazuma went to school to get his qualification in clinical psychology. While attending school, he boards at a creepy mansion which even has a butler. Also living there is a strange young woman called Emiru. She is suffering from a terminal illness of the heart --- despair.

This deep psychological problem has eerie physical effects as well: her hair has turned white, her body temperature is well below normal, and her blood pressure is bizarre. No psychologists or counselors have been able to help cure her of this problem. Will Kazuma be able to determine the cause of Emiru's despair and save her before it's too late?

From Seraphic Deviltry:

A story where there’s no such thing as a good guy…or bad. Right in the middle of moral ambiguity, we have these two men, one who lives deceiving young boys to do what he wants, and the other one just seeking revenge, fighting fire with fire... How might this story end?

World of Ramen has never been an easy path, but "Tenshukaku" sailed to the absolute top thanks to the unbeatable entrepreneur and cooking skill of Tatsuya Kamijo. However, after his sudden death, the wife and the four managers were left with a crisis, not knowing how to keep the monstrous legacy. Around the same time, Goro Sawada, the former salaryman, Mamoru Katsube, the son of a ramen shop, and a college drop-out Shinsuke Hyodo entered the drifting Tenshukaku to achieve their Master Ramen dream. But their ambitions were being hindered by corruption and foul play from within and outside the business... Will they persist the gallant path or will they finally surrender to the corrupted?

Kasuga Arata lived a normal life in a small town, together with childhood friend and his cousin, Hijiri Kasuga. However, everything changed on the day of the Black Sun. The Breakdown Phenomenon which ruined the town where he took Hijiri away and resides was caused by the Black Sun. As Hijiri begins evaporating, she hangs a grimoire to his neck, requesting it to protect Kasuga. On losing all of his other friends as well as family and Hijiri distressed, Kasuga asks for his planet to be great again, which contributes to the grimoire artificially re-building his regular life, and making him forget the destruction of the town and Hijiri's disappearance. Lilith Asami, a mage, is sent to investigate the ruins and she finds the powerful spell within their stead. She makes Kasuga recall the specific events and hence the enchantment is broken, not without the grimoire telling him that Hijiri is not dead. Kasuga decides that his only alternative will be to become a magus himself therefore Hijiri could be rescued by him and he therefore joins a secret school for mages that copes with magic dilemmas all over the world, the Royal Biblia Academy. There he is introduced together with the Trinity Seven, seven powerful female mages who are at the top of the respective disciplines (Lilith being one of them) who will aid him in his aim to become a strong wizard and discover the truth about Hijiri along with the Black Sun. He soon discovers that another of the Trinity Seven, Arin, looks almost exactly like his lost cousin although she shows a wholly different character.

from Blissful Sin:

"I wonder… if I’ve become lecherous."

High school student Hiroki yearns for his best friend Yuuji's father, Seiji. He has tried many approaches, but has only managed brief exchanges. Yuuji told the depressed Hiroki “I’ve fallen in love with you…Why don’t you forget about my father!” However, Hiroki bravely began the process of captivating Seiji. Before long, the aimless lover is being loved, Hiroki’s body being ravished…
In the shocking three part series, Idol Unit “Boku-chan’s*” series. Drawn for this special release, a tank-full of even more love, debauchery, and worthwhile reading collected in this omnibus!!

Paraphrased from Kotonoha:

This is a collection of eight stories (there are 9 chapters, because story 6 is composed of chapters 6 and 7).

Story 1: Teased and Stepped On, What Blooms is a Passionate Flower
Describes the relationship between a girl and her teacher.

Story 2: Lolita #7
Features the relationship between two cousins, an older male and a younger girl. One is a teacher, while the other is a student -- both at the same school. When the elder cousin doesn’t come to class for several days, the school administrators send the younger cousin to the elder cousin's home to investigate further.

Story 3: Song of the Devil

Story 4: What If?

Story 5: Happiness

Story 6: A Room of Clouds (chapters 6 - 7)
A simple minded girl who tries to live her life the best she can.

Story 7: Indigo Elegy

Story 8: Underground Doll

From PROzess:

Okada Keiichi nearly drowned in his childhood, which left him with a trauma for water. Now he faints on the slightest touch with water. To his grief, his girlfriend takes him to the pool to charm him with her swimsuit. By accident Keiichi falls into the pool and gets rescued by the swimming instructor, Mizushima. Keiichi senses something special about her and even Mizushima seems to knows something about Keiichi's past. What will happen to Keiichi now?

1. Sinking Man
2. Warm Water Bubbles
3. Sweat And Body Temperature
4. Nice Flow
5. A Night Of Tears
6. Crumbling Resolve
7. Resurfacing
8. Lasting Feeling
9. Sea Of Mermaids

N/A

Ashihara Chihiro is a regular high school student. One day a man came to her and told her that she's actually a princess from another country in another dimension. Chihiro later found out that it was true, and in fact her own best friend and teacher were actually her guardians! Her country has been taken over by Raja, who is now king. Chihiro and her guardians come back to that dimension to take back their country. In her quest, Chihiro met other guardians and warriors who were willing to help her achieve her goal.

From Manga Jouhou:
Takashi Sone is living on his own while he is attending college. Out of the blue, his parents tell him that his sister, Mafuyu, is moving in to live with him and that she will be attending a high school in his area.
When she arrives, he finds out that she was kicked out of her old school for getting caught making out with another girl. Soon afterwards, the other girl arrives, having thrown away everything she owns in order to run away and live with Mafuyu.

Volume 11 has a unreleated 2 chapter story at the end called Frills

A collection of 12 short stories, including:

She, her, her, hers: by Otosaki Tsubaki
Sakuya is shaken up by her parents' divorce and is worried that her relationship won't last forever either. Her lover, whose parents are also divorced, understands her feelings and tries to reassure her.

Endless Narcissus: by Otosaki Tsubaki
The protagonist wants someone who will love her and her alone, so she gets a clone of herself.

Hidden Meaning: by Itou Chika
A writer and an editor who are lovers. The writer keeps basing characters on her lover, and the editor wants her to stop because she's afraid that people at work will find out about their relationship.

Maintenance: by Itou Chika
A woman fantasizes about the mechanic who works next door to her office building. These fantasies involve being the car the mechanic is fixing.

Only the strongest woman is worthy of being Queen. On this continent, a desperate struggle to crown the new Queen is held every four years. The Queen's Blade.

Collection of 7 stories:

1-3) A highschool boy falls into the river on the way home from school. He gets a fever and is forced to go to the hospital to get some medicine. But man, what's with that doctor and his treatments?!

4) The boss of the highschooler falls in love with a Ramen Delivery man.

5-6) A boy on the baseball team is fed up with all the talk about the model at his school. The model told everyone he likes someone whos on the baseball team which caused a riot. The boy could care less, but... can he easily forget the kiss?

From Fantasyshrine:

The so-called “Hard-boiled man” famous novelist, Takamura, came to a seaside village and encountered a youth named Midori, who bewitched Takamura with his jade green eyes. But before the cynical novelist realized it, he was dragged into a small hostel ran by Midori’s family! Later, Takamura learned that both Midori and him shared similar heartbreaking childhood experience, yet Midori never lost his faith and trust. In anger and frustration, Takamura violated Midori! How would these two come to terms with their feelings for each other?

Chapter 4 also published in Yatte Yaru, Konya! (chap 3).

1-6. Collecting #1-#6
A girl collects everything her crush touches; a man keeps a photo album of women giving him blowjobs; schoolboys plays a sexual card game; a lunchbox factory girl collects vomit; a man gathers his missing girlfriend's body parts; a suicidal girl joins a group of women who've made abortion into a grotesque art.

7. Harakiri
A world where cutting your stomach is the newest fashionable trend among schoolgirls.

8. Holy Night
Santa is terrorizing the Japanese by flooding everyone with unwanted gifts. The only way to stop him from sending more is to convince him that you're happy with what you've got, or so people think.

9. The Unscratchable Itch
Putting worms under the skin can be an addictive pleasure.