(From Prisms):

A depressing story about how a Japanese family's life goes wrong: an immoral protagonist, her sister who was gang raped before, her alcoholic mother who later devoted her life to a cult, and her father who lost favor with his company... full of sexual content and highly violent.

1) Atashi wa Sore wo Gaman Dekinai
A very ordinary office lady named Mahiro Yano becomes a plaything to her former crush Kyouichi. The married man fools around with her, exhausting her mentally. Still, she can't find a way out of this love fix.

2) More Tender Than Commanded
Ayumi wakes up after a car accident with no memory. Alone in the world she clings to the only person that she has - the mysterious Tsukasa Miura. Living in his apartment, spending her days with him, she comes to care for kind professor, but when her memory returns...

3) Come to My House!
Recently orphaned university student Riho Akiyama has no place to go and moves in with her father's old friend and his three handsome sons. Becoming their housekeeper in exchange for school fees seems like a great deal, but the middle son's unexplained animosity is hard to bear.
(There's a Christmas Special in Sekai wa Bokura no Tameni!)

4) Nametokya Naorimasu!
Nana Hasegawa is a nurse who's learned the hard way that romances with patients are doomed! So when mysterious patient Himura pursues her, she's not interested. But the mystery of his identity is intriguing, and following her curiosity gets her right where Himura wants her!
(There's a sequel in Koisuru Heart de Taihoshite)

[From ShoujoMagic]: This volume is a collection of short love stories. Story 1: Romantic Love Complex The rumors of Hitomi's sexual exploits are getting out of hand, and Hitomi's nerdy boyfriend, Gaku, of course has heard them all. With his parents' vacation house all to themselves during the holidays, he's determined to have Hitomi turn him into a real man. What he doesn't know is that Hitomi started the rumors herself because she was too afraid to admit that... (!!!) Story 2: Hold Me, Holy Knight Kana has broken up with her boyfriend just in time to make Christmas very lonely. That's when she meets Iikura, a handsome stranger who offers to be her boyfriend for the sake of the holiday. He's a little unorthodox, and shy in the one way that Kana expects a man to be aggressive. Charmed by Iikura's eccentricity, will Kana give both her body and heart to him before the holy night is over? Story 3: Totally Pure Heart It's Valentine's Day at Kurumi's school, and Kurumi made chocolate the night before with someone specific in mind. When it comes down to sink-or-swim, and Kurumi must present it or be stuck with her own hand-made chocolate heart... she sinks. Running from her embarrassment (and her persistent friends), she ends up alone in a room with Matsuura, one of the most popular boys in school who is also doing his best to evade Valentine's Day. Although he's weighed down with chocolate gifts, he's determined to steal Kurumi's pure chocolate heart... Story 4: Flower Couple The continuation of "Totally Pure Heart." Kurumi's friend Chisato is well-meaning when she suggests that confessing love for Matsuura or sleeping with him too often will make him grow tired of the relationship quickly. Kurumi is also well-meaning when she brings Chisato and asks Matsuura to invite a male friend for the "camping trip for two" that Matsuura planned. Getting mixed signals from Kurumi and being scrutinized by Chisato, Matsuura is frustrated, and it's only a matter of time before someone cracks. Story 5: The Glass Shoe Doesn't Fit Mia and Ikurou have been friends since childhood, but lately Ikurou has taken an interest in the lovely Satoe. While Mia drops subtle hints that Ikurou fails to pick up, she gets to constantly hear how she's not quite as cute as Satoe. It becomes too much for Mia, and when another handsome and highly sexual student asks her to be his girlfriend, she has no good reason to refuse. When Ikurou learns of Mia's new male acquisition, the lovely Satoe suddenly seems less attractive to him, but his realization may have come too late...

The prequel to Honeymoon Salad. This manga tells the story of Minori and Youko's high school relationship. The final chapter is a story about Ichika in her high school days.

From Colorful Scans:

This book contains a complete analysis of Type A, Type B, Type O, Type AB boys in particular!!

1. How to love a B blood type boyfriend:
It is said that blood type A and B are the worst combinations among all... What will happen to Kanade, a blood type A, and her blood type B boyfriend…!?

2. How to catch an A blood type guy
Miku, blood type O, confesses to her love, blood type A, and was rejected. Being a blood type O, she won't give up that easily, together she and her friends start devising plans to catch her love. Will their plans work?

3. The true character of an O blood type guy
Aki is a volleyball player in the springtime of her life who is uninterested in love. What will happen when she is confessed to a junior? What is he truly after?

4. Countermeasure your inclination to an AB blood type guy
Rio dislikes blood type AB guys after her unpleasant experiences with type AB boyfriends. And her fellow co-worker just happens to be a type AB. What will happen between the both of them?
[LITTLE SMUT SCENE ALERT]

5. The best boyfriend
After confessing to Murakami, a cool and intellectual student council president, Noa and Murakami started going out. However Noa starts to doubt if Murakami truly loves her or is he just too kind to reject her?

6. Your body temperature when you fall in love
No one can ever guess the relationship between Koga, a popular guy in school, and Ako, a lonewolf!

Miko is a shrine maiden who has never had much success at seeing or banishing spirits. Then she meets Kagura, a sexy demon who feeds off women's feelings of passion and love. Kagura's insatiable appetite has left many girls at school brokenhearted, so Miko casts a spell to seal his powers. Surprisingly, the spell works - sort of - but now Kagura is after her!

When I was only 8 years old, I was attracted to Hagane, who was accepted into our house as the son of a servant. But is duty the only reason why Hagane listens to what I say...? I can’t understand how you feel because invisible chains bind you...

From Kodanclub:
Long, long ago, a woman who had coupled with a strange beast gave birth to a Saishi, a half-human half-beast creature, whose body was filled with venom. These brutal creatures were used in battle during times of unrest, but during times of peace, they were shunned and hated. Indeed, they were cursed.
A Ronin samurai called Gen Tsukinosuke is one of the few surviving Saishis and the owner of a magnificent sword, the "Fangs of God." He travels in search of his estranged sister and sleeps with women who yearn for death, killing them with his deadly poison. The story takes place in the war-torn days at the end of the Edo period. With a destiny to be a Kaishi, Tsukinosuke is also being swallowed up by the harsh flow of history.

Note: Bestia is the extended version of Ryuugetsushou and contain more content as Ryuugetsushou has three volumes and Bestia has four volumes.

Three members of a modern-day Japanese cult who are taking part in a "deserted island" program in which they must work together to purify and refine their spiritual essence and transform themselves into more advanced human beings. Of course, life doesn't usually work that way.

From Antisense Scanslations:
Makoto, a first year high school student, was forced into joining the Beauty Research Club by upperclassman Bidou Yoh. The only problem is that she always feels like throwing up when faced with beautiful men! Yoh's younger brother Mucchi and Makoto start to have feelings for each other and it grows into something more, but then they find out that Yoh is Makoto's half-sibling and now the young couple must overcome different life hurdles.



From StarryHeaven:

Everytime the dumb, naive, and pretty girl Makoto sees beauty she’ll throw up~! Unfortunately once she enters the school, the first pair she encounters is the super weird, yet beautiful guy, Kiyoshi-sempai, and the incredibly beautiful guy, Atsushi-sempai!! Plus she was forced to join the “Beauty Research Club”, she was put in chains by Kiyoshi-sempai and he just wouldn’t leave her alone. But…the one Makoto actually likes is Atsushi-sempai…!!

Volume 3 contains a Oneshot called A Liar's Love.

1. Sensei no Omocha (The Teachers Toy): "I hate it, but my body doesn't act the way I want." Haibara is a chemistry teacher who hides his handsome face behind a pair of glasses and conducts research on suspicious medicine. What will happen to Mayuko, who accidentally drinks Haibara's special aphrodisiac that can't be cured without having sex? These two's secret starts to unfold after school in the laboratory...

2. Pretty Jewel: Juri is a model for a teen magazine, who suddenly gets replaced as the cover model and loses her father as her manager in one go. What would she do now, especially when she is assigned a new manager whom she doesn't like, but who slowly gains her attention?

3. Kinren ~Yajuu no takara mono~ Continuation of chapter 2

4. Devil or Angel?- Moena is housekeeper for Kei and Shou, the twin brothers and hit idols of the band Devil or Angel. Older brother Kei is sweet and charming, while younger brother Shou is childish and bullying. Moena's adores Kei, but finds herself thinking more and more about Shou...

5. Ura Sensei no Omocha- Mayuko delves into Haibara's cabinet in an attempt to turn the tables on her devilish teacher.

From Nekohana:
Rich young Master comes across a girl alone and abandoned during Christmas. He decides to take her in and name her "Mike". Now he's in high school and she's his personal maid. Did I mention she now loves him and he's rather sadistic with a terrible panty fetish?

From Fushichou:

Around the time that Hinaki Mitsura climbed his way to number two host in the club, Tsukayama Satoshi transfers from a branch store. He was Mitsura’s senior in high school, and also the cause of Mitsura’s most devastating memory. Tsukayama proceeds to take over as top host, surpassing Mitsura and the man he has been living with, Miura-san. Miura-san is kind, gentle, and wants to protect and love Mitsura. But Mitsura’s heart is closed, that is until Tsukayama starts to work his way under Mitsura’s skin. His growing attraction to the arrogant one who caused a deep scar under the full moon is a source of confusion and suffering, and he begins to question everything he is - everything he has worked to become. This love story vividly depicts the human drama among hosts, under the blurry moon.

Collection of short stories.

Contains:

• Blue

• Hypochristmutreefuzz

• Nandattenda 7days (Kasei no Jijou no Maki)

• 197X
Long, long ago, when things like VHS, Betamax and satellite broadcasting didn’t exist yet, there lived a boy who loved watching movies over anything else - until one day he found something much more interesting to do in the darkness of the movie hall…

• Hageshii Ousama

• Kibou no Tomo

• Zubizuba

1-3) Love Minority
Isuka Yoshihito, a high school infirmary sensei, fell in love with a student, Shiina Satoru. However, after Sensei confessed to Shiina-kun, things started to go wrong. The mild-mannered Shiina became totally different and their strange relationship began.

4) Evening Grew
A high school reunion brings back memories for Hayashi Akira when he sees his childhood friend Tsujitani Masato. While Masato was easy-going and popular, Akira was quiet and deep and his intense affections and jealousy for his friend led him to destructive actions that would haunt him for years...

5) That Future that is Unknown to Us
At junior high graduation Kazuki confessed to his friend Makoto, only to get shot down. They've managed to hang onto their friendship, even though they go to different high schools. But lately Kazuki's love-em-and-leave-em gay relationships are starting to bother Makoto.

6) Paradigm Shift
Love Minority extra.

Collection of 8 oneshots.

1. Tokimeki and Suki and Kiss
Things get complicated for Tetsu when his childhood friend Makoto confesses that his penis gets erect when he's around Tetsu. Tetsuhito starts thinking about things, and wondering if he can get erect for Makoto too... well there's only one way to find out, right?
Note: They are both high school students, even though Makoto acts+talks like a child, so this ain't shotacon.

2. I'm Thinking About
Matsushita-sensei tells his lover, and student, Atsushi not to come over until exams are done. The separation proves to be harder than Matsushita thought...

3. My Stuff's Gone
Tsukasa and Hideomi are childhood friends. Hideomi has been pulling Tsukasa into certain naughty behavior. Despite Tsukasa's reservations, he went along with it, but then Hideomi's shocking declaration of "I want to try having sex"?! And on top of that, a confession...?!

4. Look In
Mayama's in trouble. Okabe caught him staring... and confronted him about it, asking if he's gay. Mayama runs away from his classmate, but what happens when Okabe catches him staring again?

5. Gotta Love It
Mizuno has been hurt in love before, so he made the decision to never date another man again. But when Tomoya, his home-tutor student, professed his love for him at first sight, Mizuno finds it hard to stick to his plan. Will Tomoya's feelings get through to the Mizuno's locked-up heart?

6. Knight Applicants
Masato is prince at his school as well as being the student council president. His guard is his loyal childhood friend and Vice President, Kei. Masato confesses that he has someone he likes, although it's one-sided. Kei finds himself more shaken about it than he had expected, but has no time to think about it, as someone is after Masato...!

7. Moon's Magic
It is often said that long, long ago, the moon and cats had a very intimate relationship... But what exactly does that mean?

8. Referred to You
Fumio's grandfather liked to collect strange objects. Among these was a lamp that one day Fumio decided to clean. An adorable genie appears, saying that he will grant Fumio three wishes. Fumio's first two wishes come and go accidentally, but he decides on a kiss from his favorite poster girl to be his third wish. Just as he asks for the kiss though, the spirit of the lamp misunderstands... But actually, this feeling isn't bad...?

All the characters look like children/young teens, although they're adults. If you don't like shotacon, you might want to skip this one.

Mochidzuki Renta is an aspiring college student, trying to support himself while studying for the entrance exam of his preferred school. He's started renting the spare room in the Hanano bath house. What this means is that he's living with the sweet, hardworking, innocent, and quite beautiful Bandai Sakurako, who runs the bathhouse. They are growing to like each other more and more, but one thing could potentially sabotage their budding romance. Every other woman Renta meets, even his college entrance cram school teacher, seems desperate to get in his pants. And Renta meets a fair amount of women, since the girls from the dorm of the nearby nursing school often come to the bathhouse. Will Renta be able to deflect the unwanted attentions of all those women in order to pursue a relationship with Sakurako?

From Nakama:

Koudou and Takashi are lovers. But there’s one cause of uneasiness. Koudou is just a popular guy. One day, that uneasiness struck home!! A man who says he likes Koudou appears in front of Takashi…?!

From ShoujoMagic:

Yori's attitude has changed. He and his twin sister, Iku, used to be inseparable as children, but lately Yori's been different -- eager to be apart from Iku. Iku worries that he hates her, but the truth is far more scandalous. Now, Yori would risk losing everything to have his little sister. Iku loves her big brother enough that she would never risk losing him, and so she'll do what it takes to keep them together... but Yori doesn't want to have her that way -- as a sister dedicated to her twin. Can Iku ever love Yori not as a brother but as a man?

Boku wa Imouto ni Koiwosuru received the Shogakukan Manga Award for shoujo manga in 2008.