From TokyoPop:

After 1000 years of peace, the wolf god Fenris Fenrir has been reborn. She seeks to find the reincarnation of Balder, the most beloved God, as the land of Midgard sinks further into anarchy. They are both key players in the coming of Ragnarok, the time when fate and free-will shall come into conflict as the very nature of the universe is forever redefined.

RilleL:
Based on norse mythology, ragnarök is the term for the end of the world. Christian equivalence would be the last judgement.

The popular Korean MMORPG "Ragnarok Online" was based on this book.

Matsuyo, a model frustrated that he isn't recognized on the street, antagonizes Keiko, a waitress in a cafe, and is amused when she responds in kind. This encounter results in his cake served to him on the wall and her with an invitation to dinner at his apartment! But why will it take four days to prepare the meal?

From Tokyopop:
The story of a detective who becomes involved with a young boy with telekinetic powers and his violent sister.

The manga's main characters are featured in another series by the mangaka, FAKE, as supporting characters in Vol 3-5.

From Shoujo Crusade:

Riko Mitsumi is sixteen year-old girl who is pretty and a good student. She would be like most girls if she wasn't constantly dreaming about sex and using a pseudonym to write about it.

A collection of short stories by Ingénuo author.

1) Pure Love;

2) Double Faced Venus;

3) 100% Pure Girl;

4) Summer's Noon;

5) Bloody Sculpture.

From BangAQUA:

Sung Hyeg is from a rich family; smart, prudent, cunning and strong. Je Ha is from a poor family; an idler, hooligan and is always looking for badass adventures. Both of them have nothing to lose. And it would have been best, if they had never met…

Ashitaka's an out and proud gay man, trawling for booty calls at his favorite gay bar - but only bottoms need apply, because Ashitaka only tops! His first attempt at gay sex three years ago ended painfully and embarrassingly, and he vowed to never yield his ass to another man again - but fate has decided to throw the very man responsible for his 'bottom trauma' back into his life, and the guy's looking for a fresh start.

[From AnimeWaves]:

Chinami was born with psychic powers. She has always wanted to join the Psycho Police Force. However, she doesn't know how to control her powers, so she failed the entry exam. However, after being saved from a psychic criminal, she joins the Psycho Merchants instead.

Provence is a popular cafe that is owned by brother and sister, Hayes and Hayumi. Many young girls come to Provence just to meet Hayes. In the first story we meet Yune who is a high school student who illustrates childrens books, who is enamored of Hayes. Will she be able to confess how she feels?

In the second arc we switch to Hayumi and Alan. Alan has been in love with Hayumi for a long time, however is constantly rejected by her. Will he finally win her over?

From HMR Scans: No matter where you are I can recognize you at one glance whether you are disguised or far away. Because it's our fate and destiny. There is no other enemy like you!! You tackle and bother me on everything I do. Say and Yong-won are like enemies ready to attack-!! Messed up and tangled Say’s and Yong-won’s sad but beautiful love story~

The cute, slightly sinful, collection of stories.

1) Touch Me, Melt Me
Tatsuya is a second year high school student whose tutor, and subsequently his father’s subordinant, tells him "I’m in love with you," and suddenly kisses him! Since then, even as he repels Saejima, Tatsuya is hyper-aware of him, but Saejima is constantly joking around, and Tatsuya doesn’t know how far he’s being serious.
Why is it that the mature looks on Saejima’s face make Tatsuya’s heart to throb, and feel every touch?! (from Blissful Sin)

2) Touch Me, Spoil Me
Continuation of chapter one.

3) How Do You Think I Feel
Story about two video rental coworkers, Atsushi and Tetsu.

4) The Stars That I See When I’m with You Are Pretty
Story about bath-house part timer Koutarou and the customer Aoi.

5-6) Flip · Flop
Brothers Kiyo and Shun have somehow become estranged from each other, what could possibly be the reason?

Collection of short stories:

1. Sensei wa Sadistic (Sadistic Teacher)
Refusing numerous confessions, Tamami's nickname is "Princess that's difficult to fall". In reality, she's inexperienced in a love relationship. One day, in order to refuse a confession, she mentions "I love Kunugi, the math teacher." and lies. Kunugi overheard this conversation and....?!
-Chibi Manga

2. Sensei wa Usotsuki

3. Santa Claus Panic!!
It's the season of Christmas and companies are advertising their services more determinedly during these times. Yayuka accidentally picked up a flier saying a Santa will give her a wonderful gift on Christmas if she calls that number. Not wanting to be alone of Christmas, she calls the number and prepares a Christmas feast for Santa but when the doorbell rang, there stood a very young and handsome Santa who happens to be a debonair host!
- Aerandria Scans

4. Renai Shisuu 0%

5. Sensei wa Yappari Usotsuki

[From Aku-Tenshi]:

In the center on a metropolis city lies a small, shaky-looking house. A normal... Okay... Not so normal high school student, Sakura Tetsu (and his family), who works day and night relentlessly to support his family's living expenses, lives there. All is normal until one day, people from the future, alien pirates from outer space, appear. The underground kingdom claims Tetsu's land. Will he prevail in protecting his own land? Or will he surrender his land into many more invaders to come? Yes... Weirdness and insanity ensues!

From An Endless Story:

After the death of her father, Sakura decides to follow her father's last wishes and move into Sakura Dormitory and attend Sakura High. However, on her way there, she's approached by a stranger who mistakens her for someone else and steals her first kiss!

From Blissful Sin:

1) Beyond a Kiss is...

2) Sailor Danshi
Seeing a friend dressed up in a sailor uniform at a drinking party, his heartbeat immediately speeds up and his crotch starts throbbing! To find out why, he takes his friend to a love hotel and...? The arousing sailor uniform clinging to a muscular body, bondage brothers, oyaji harassment, sex on the beach and much, much more - all in this fully-loaded novel!

3) Pure-Heart Lies

4) Absolute Love Tyrant

5) Hyper Ocean Love Story

6) The Daily Life of a Dog

7) Infinite Affection

7.5) Extra and Afterword

From Nagareboshi Manga:

The student council is full of strange, quirky people with clashing personalities. One person in particular, Tsubaki Kiyoi (nicknamed Tsubakiyo), has a special talent that only one other person knows about-- when she touches someone, she can access their thoughts and memories. But because of this talent, she is very introverted and damaged inside. Can she overcome her fear of coming in contact with other humans, and take control of her power?

1) Saikou no Kimi
All begins when Soga Naoaki went to complain to the president of the student counsil, Yoshizumi Sekai, about the reducing of his volleyball team's bookings. By coincidence, Naoaki becomes the vice-president of the student counsil because of the health of the current one. He and Sekai don't get along, but what happens when they have to organise the school festival? Also found in Koibito no Namae

2) Kimi to Boku no Itsu Pobun
Oneshot also found in Renai Jikaku Shoujou.

3)Kimi ni Ai ni
Oneshot also found in Takaramono.

4) Afterword

Ikewaki Gajirou, nicknamed Gacchan, is the most valorous of the Big 5 in his school. He's a pretty good person. However, he has one flaw that people fear him for...

From Tokyopop:
On a world with no women, the surviving men have reintroduced the female in the form of an android. Called Marionettes, they are built to serve men and are limited in their interactions with humans. That is until a poor boy named Otaru Mamiya encounters a Marionette named Lime. Lime is a Saber model with a special circuit that gives her emotions. When Otaru awakens two more Saber Marionettes, his life as an 'average' man quickly becomes as extraordinary as the lives of his eager, busty new friends.

In search of her mother Nagi, a girl from a desolate country village, comes to a big city and enters Swimming Suieikyou High School. Shortly after joining the swimming club, Nagi finds out that the pool is actually completely overtaken by boys! But in this never-practicing so-called swimming club Nagi finds something...