The card reads as follows:
Congratulations! You are one of the 1 in 100,000 people who has been entered in the amazing LIAR GAME TOURNAMENT!

Along with the postcard there is 100 million yen in notes. That's the beginning of the Liar Game. When the game ends, in 30 days, you will have to return your 100 million. If your opponent steals them, he can keep them as a prize, and you will have a debt of 100 million...

From MangaHelpers:
Since their mother's death, sisters Tomoe and Mikage have been mostly raising each other. The older sister, Tomoe, is determined to get good grades and work her way into a good college. However, she's disturbed by the trouble Mikage sometimes gives her. For instance, at the beginning of the manga, Mikage sneakily locks a collar around her older sister's neck, forcing her to go through the day wearing it. Mikage wants Tomoe to think only of her, and her affection may be beyond sisterly love. However, at school, Mikage has made a new female 'friend' that has a serious crush on her. The two sisters have their separate lives at their respective schools, but their life together and their relationship may be most important of all.

From Psycho Pandas:

"I have something I don't want to lose—
So much so that these terrible feelings have grown."

A pianist who attempted suicide 3 times, Juri, is taken to help her aunt at a prison where murderers who killed indiscriminately are sentenced to death. There, she meets a man named Yuu who took the lives of 3 people. A mother's antagonism--a brother's death... Together they embrace the violent rebellion in their hearts caused by the large, deep scars they carry. However, before long, they both embrace an earnest hope in their hearts. "I want to live..."

An adaptation of a novel by South Korea's most popular female novelist, Gong Ji-Young.

From Fallen Syndicate: "My father's last words were a curse, binding me even after his death." Genkyou is a city-state ruled by status and comprised entirely of nobles. Crime and underhanded deals seem to be an everyday occurrence and one in which many turn a blind eye. To fulfill his father's dying words, Iori travels to Genkyou determined to do whatever it takes to extract his father's revenge. However, their may be more to Iori than meets the eye.

If you wished for your own death, how would you like to go? Here is one boy's encounter with a grim reaper...

From Impossibility:

High school student Hasumi Kei has only one goal in life--that is to visit her classmate Kanzaki Kyosuke's apartment! Seeing how the two do not know each other, Kyosuke refuses to allow her to be anywhere near his apartment... But Kei is relentless, demanding to get her way... but why?

Rain Jewlitt, known as the Methuselah, is a spaced-out, immortal, 624-year-old man dressed in priest's clothes. He's got eternal youth and a large price on his head—put there by those questing after the secret of his immortality.

Machika Balfaltin is a tomboyish, energetic 14-year-old girl who, upon the death of her grandfather, sets out to kill Methuselah, the one bounty her assassin grandfather, Zol the Grim Reaper, couldn't kill. Instead, however, Machika ends up being saved by Rain again and again from other aspiring bounty hunters attacking them both.

Sound like the beginnings of an odd relationship? You won't believe where their journey takes them...

1) Explosive Fairy Tale
Childhood friends, Danzou and Shou, run into a dangerous bump in their relationship when Danzou reaches puberty ahead of his smaller friend and begins to see him in a whole new way.

2) Undoubtedly Useless a Painful Season

3) A philosopher in Love

4) Follow-up

5) Awakening Puberty

6) An Eyeful and a Handful
Not scanlated.

7) Going into Overtime
Not scanlated.

8) Afterword

1-2) I Love You Too Much
Sweet story about Kouji's secret love for his friend's younger brother Mizuru. He is satisfied with any chance to spend time with Mizuru but one day, he suddenly realizes that his time with Mizuru will be coming to an end. Will he finally confess his love or will he let this love remain buried? Story also published in chapter 5 and 6 of Kagakushitsu e Douzo.

3) Cruel Love
Kiichi's parents died when he was a child. For the past ten years he's lived with his uncle whom he loves. Even though they have sex Akumitsu never tells Kiichi he loves him. Is Kiichi just a toy?

4) School Scandal
Uemura is the only one who treats his classmate Atsushi like a friend instead of star actor. But is friendship all Uemura feels?

5) Am I Your Dog?
Kei is considered a troublemaker at school, so when his sempai Kagami catches him smoking Kei has to do what he says, or risk getting expelled. But to be sempai's pet dog? And how is Kei's brother involved?

6) Our Future Diary
Eight page short about a perverted teacher and a gay porn video.

7) Love Facism
Rui is dating Yuka, a very pretty girl from his school. Then he meets exchange student Tooru. Tooru and Rui had a relationship in the past, but that's all over, right?

Volume 1
1-2) Welcome to the Chemistry Lab
Shibaura, the Chemistry teacher, usually seems gentle and kind but what is he really like in reality? Will Kousuke be safe in the Chemistry Club?

3) Only You Would Steal me Away
Kobayashi is always appearing out of nowhere and clinging onto Kousuke's brother. What is his purpose? Is it just to help Kousuke and Shibaura, or is there more to it?

4) The King's Lens
Takeru has fallen in love with the photograph that Sumito has taken, but is strangely avoiding the photographer like the plague.

5) A Grave Sin
Ryuuya's father has just passed away, and now he is forced to live with his uncle, who also happened to be his father's lover.

6) I'm in Love With a Demon
Everyone has always avoided Zenta because they thought he was creepy and geeky, except the cutesy Hibino Rei.

6.1) Omake
Some short stories on the main story.

Volume 2
1) The Illegitimate Couple
It's been 6 months, and Shuri is wondering if Kobayashi is really his lover. Kobayashi's memory is continuing to improve, and he remembers something about Shibaura Sensei and the pharmaceutical company he worked at, but he can't remember what. Is it good? Is it bad? Will it affect the relationship between Shibaura Sensei and Kousuke? Will Shuri and Kobayashi move their relationship past kissing?

2-3) Welcome to the Chemistry Lab
Shibaura promised to call Kousuke during the holidays so they can meet up but he never did... The new school term started and Kousuke found out that he not only failed in his promise, Shibaura has completely disappeared without leaving any signs.

4) No Place to Return
Sakuchi's father works in a large company that requires him to constantly be on the move. Sakuchi struggles with the anticipation and goodbyes of fleeting friendships that he is always faced with. He has finally become close with Kobayashi and Kousuke, but it is time to say their farewells.

5) Last Letter
Ryoya has finally returned to the house he has spent the last 20 years avoiding.

6) Rigorism
Shuri is finally in university and now lives in the dorms. Kobayashi is unsure how he should proceed with their relationship without giving Shuri any trouble.

7) Omake

Volume 3
1) Road of Love
Shuri is finally starting to see that Kobayashi isn't really a cold person but rather, an awkward person. Kobayashi keeps things from Shuri simply just because he doesn't want him to worry too much.

2) Knockout
Dr. Kajiwara has been proposed to by his patient Mutsuhi but he is hesitating because he can't quite put Dr. Shibaura his high school crush completely out of his mind yet.

3) The Night Will Finally End
Kousuke has finally gotten into his dream company, Yuazu Pharmaceuticals. Willl he finally be able to find Shibaura?

4) Road of Fate
Miki is in love with Kousuke but she can't confess her love for him because she can feel that he already has someone else that he loves.

5-6) I Love You Too Much
Story that was also published in chapter 1 and 2 of Ikura Nandemo Suki Sugiru .

7) Character Profile

8) Omake

A story about two college friends - both of whom have girlfriends - who fall in love and embark on a relationship that they swear will never go beyond the sexual (as the romantic part belongs to their girlfriends alone)... But which inevitably ends up being much more complicated than that and becomes subject to the scrutiny of all those involved.

Mekakushi no Kuni is the story of high school student Outsuka Kanade who can sometimes see a person's future with a touch, and transfer student Naitou Arou, whose ESP is limited to past events. When Kanade glimpses an unfortunate incident coming, can she change it? She soon befriends Arou, who's no novice. While Kanade’s power is limited to the near future and is somewhat incontrollable, Arou’s is permanent and he can even use it to see an object’s “memories”. Are these teenaged seers of the past and future made for each other? And who's right: Arou with his "hands off" policy about meddling in people's lives, or Kanade whose more proactive stance has already had unhappy consequences?

From Project Bite Me! Scanlations:

The creator of Baoh and Jojo's Bizarre Adventure presents a manga about magic and mysteries! You'll meet him at 13:13 pm, on Friday the 13th. He'll do an uncanny intro where he plays a trick on you! And wherever he goes, trouble seems to always follow. Who is this person who creates such incidents? None other than Cool Shock BT!

1-3) Blue Grey Dream
After the failure attempt of eloping with his customer, Shiki (Purple Ghost), a male prostitute, gave up his hope for love… until Ootori-sensei came along. Will Shiki finally find what he had been looking for…!? So what if there's a huge gap on their social standings, what's so wrong about living and loving for the moment? Enjoy this forbidden love story in the red-light district.

4) Untied Heartbeat
Shinobu and Washizaki parted ways in the most terrible of circumstances and after the many years that have passed, Shinobu is still scarred by the incident. When Washizaki returns to Japan and seeks treatment for cancer at Shinobu's hospital, Shinobu must face his past and find a resolution to the difficult feelings he's hidden deep inside.

5) Heartthrob Prince
Noriaki, a normal Japanese high school student befriends transfer student, Zeid, a prince from overseas. As Zeid accustoms himself to Japan, Noriaki, although frustrated with Zeid's broken Japanese, finds the prince increasingly more charismatic and charming. Can Zeid charm his way into Noriaki's heart, and ultimately, his bed?

A mysterious command arrives from a "King".
The life-threatening "Game" has now begun for the 32 students of the first year's B Class.
One day, all of the students in Nobuaki's class received their first message from someone calling themselves the "King", in which was written a baffling command.
That first command was very easy. However, the commands began to escalate until a life-threatening game had begun.
Failing to obey the orders leads to death!! Their friendships are being undermined by a bottomless terror!!

Yaya’s high school friends haven’t been very nice. They call her “Yaya the cry-ya! Yaya the misfi-ya!” But no matter how badly they act, Yaya is just too naïve and trusting to believe the worst of her friends. Hard-rocking, butt-kicking Nana is just the girl to grab hold of Yaya’s timid demeanor and turn it upside down. Nana exposes Yaya’s “friends” as slime bags, doles out punishment, and does it all with style. Can there be anything that terminally shy Yaya and hyper-confident Nana have in common? Well, for one thing, they’re the same person. -- Manga Updates

From Tokyopop:
A smoke-filled alley in Chinatown harbors Count D's Pet Shop. The pets sold here aren't your everyday variety and the Count prides himself on selling Love and Dreams in the form of magical creatures that come with an exclusive contract. But buyers beware. If the contract is broken the Count cannot be held accountable for whatever may happen. A fascinating and macabre look into the very soul of human nature.

Tsutsumu Shisui is brought up by his grandfather, Dr. Yuujirou after his father, Dr. Hiromu died. But now Yuujirou also died with a lot of debt. At Yuujirou's funeral, Tsutsumu's cousin, Sou Takigawa suddenly appears and declares that he wants to take care of Tsutsumu.

Heero attempts to live a normal life after the war. But his "peaceful" life is disturbed when someone manages to steal Wing ZERO. He rushes to search for it, and is then faced with an unlikely foe. On all accounts, Ground Zero can be considered a doujinshi due to its lack of consistency and subjected humor. However, it tackles deeply into the characters' morale and philosophies regarding war, peace, and of course, the gundams. Like Battlefield of Pacifists and Blind Target, Ground Zero are *possible* events that take place in between the TV series and the OVA, Endless Waltz.