Nagisa was asked to become the nude model for a product, who's concept is "The Sexual One". In order to get used to his body, Fumitaka Kuga offers to help, including allowing Nagisa to stay at his apartment... for a price. Now, Nagisa must undergo rigorous sensual training everyday and must stay nude in front of Kuga.

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

From TachiNeko Guild:

Set in post-World War II Japan, this is a story of young Haruomi, an heir of the prominent Morimura family. Stripped of his aristocratic title while facing a repossession of his estate, Haruomi finds himself thrown on the mercy of a wealthy Japanese American, Tsutomu Oshio.

At first, Oshio wants nothing to do with a naïve noble. After all, he hates the Japanese above all else. Yet as the days go by, Oshio finds himself inexplicably drawn to Haruomi’s innocence. Driven by a desire to rid himself of his newfound feelings, Oshio sets it upon himself to disrupt Haruomi’s flawless façade.

Through the hope of saving his bedridden mother’s life, Haruomi accedes to Oshio’s scandalous demands to become his “servant”. Thus, Haruomi’s new life as his master’s plaything begins…

Note: It sounds like the Japanese version of this title included a separate one shot about a host club. While the version published by Enju Group does not.

Hanamura Masatsugu and Takakura Kuniomi are intimate friends since childhood, and both are heirs to their respective marquises. Their favorite sport is seeing who can score the next bishounen that comes across their path in the Imperial Capital. And now Kuniomi has set his eyes on a new target…!?

Who would be the winner between these two beautiful men’s quest for love—?!

A lavish Taisho* Romanesque edition!! (*** Taisho era: 1912-1926 ***)

• Harem Days
Madoka Mitsuru (Enman to his coworkers) is a rough ex-yankee, so he's not really sure how he got a job at a prestigious company. He works in "the harem", the name of the gofer department because of all the attractive ladies, under Chief Suzunari, a cheery middle-aged man who doesn't understand the meaning of personal space!

• Hareta Yoru no Hikari (Light of the Clear Night Sky)
Medical intern Chikada Tomoharu is always being called a "nice guy", especially when he's being dumped. When his lover dumps him by email, text message, and he's roughed up by the yakuza outside his apartment building he's having the worst day ever. Building caretaker Fukiage Tatsuru scares the gang off, and he and Chikada become friends. But does Tatsuru only see him as a "nice guy" too?

• Itsuka no Himitsu
It's been ten years since Yuuya was home. That was the last time he faced Asato, the blind neighbor he's always had a crush on. He's spent the time trying to forget the one night he acted on those feelings. But he's been fired and evicted; with no place to go he returns to his childhood home and the man he's never forgotten.

• My Secret: Itsuka no Himitsu bonus

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 ShoujoMagic]: Nagisa's biology teacher, Mr. Fujiki, always warned her to watch out for guys who would take advantage of her. But it's the last day of summer break, and Nagisa is determined to find love before she goes back to school! The handsome man she meets gives Nagisa the same warning Mr. Fujiki did... but there's something important that neither of them has mentioned to her!

From Shoujo-Sense
Nothing in Sakiko's life seems to be going right. Frustrated with her job and nursing a broken heart, she embarks on an ocean cruise, hoping the change of mood will turn things around for her. Never does she expect her vacation to end with the ship capsizing, stranding the surviving passengers on an island. When a young man saves her life, she finds herself drawn to him, but soon discovers he may be harboring a dark secret...

From MegKf:
Anthology of oneshots.

Keiko's at a wedding for the one she loved. She wants to cry, but sees that the guy, Haru, next to her crying. Keiko feels that they can get along since they were both rejected. But Keiko finds out that Haru was gay and that they both loved the same guy. The two of them get along real well and start to live with one another. But Keiko starts to fall in love with Haru and doesn't know what to do...

This volume also includes 2 other stories: Honey and Sekai De Ichiban Yasashii Kiss.

Matsushiro Atsuya is from a very wealthy family. In order to prevent his childhood friend Kyousuke from moving away, Kyousuke was appointed as his servant. However, now they're in high school. Atsuya may be falling for Kyousuke, but it may be a one-sided love.

3) Timid student Miyako Yousuke is being followed by fellow student Ayusawa Takashi, who says, "Please let me hold you!" Is he a crazy pervert?

4) Security guard Kurafuji is scared of ghosts, so patrolling the dark hallways of Ginseigakuen Boarding School is a test of courage! But he can always count on the bright lights of the art room and Ooga-Sensei to be waiting for him.

5) Shiro didn't expect to spend his summer vacation helping his father broker a deal with a small desert country. But Prince Remul only wants one thing: Shiro.

6) Extra about Atsuya and Kyousuke.

From Viz:
Kaya Satozuka is a brilliant secretary who excels at her job, which is why she doesn't bat an eye when she's assigned to be personal secretary to Kyohei Touma, the very difficult managing director of Touma Foods. It doesn't faze her when her new boss seems determined to make her fail, and she even manages to take it in stride when she discovers the secret behind his prickly behavior…he's a vampire! But while Kaya easily adapts to late nights and keeping a schedule of his "dinner dates", will her ultra-competence help when Kyohei's smoldering gaze starts turning her way?!

Main Story and 2 extra chapters :

1) Hitomi no Honne (3 chapters)
Hitomi's love life is a royal mess. First the sempai he has a hopeless crush on (Morihito) is getting married. Then while getting his heart broken, Hitomi is harrassed and felt up by sempai's perverted cousin - Tatsuya! Just when things seem like they couldn't get any worse, Hitomi finds himself responding to Tatsuya's touch.

2) Tatsuya no Honne
Flashback to Hitomi and Tatsuya's first meeting told from Tatsuya's perspective.

3) Epilogue to a Happy Ending (Happy End no Tsuzuki)
Continuation of Akira and Daichi's story from Miserarete (+ Tatsuya's cousin, Morihito).

Student still torturing his beloved Sensei and we get to know more about Tatsuya's past (partly from Miyata), that made him who he is. Will Hitomi still love (and understand) his student after hearing his story?

Compilation of short stories:

• Houkago Champagne Call

• Houkago Christmas Call

• Jun'ai Host Club

• Saikoukyuu no Kiss wo Shite

1) Icy Corridor, Kaleidoscope
Kousa is staying after school to help Nagai Sensei with some data entry. One thing leads to another, and data isn't the only thing being entered.

2) The Two of Them At The End of The Corridor
Continuation to the first story.

3) A Bewildered Space Date
Third year student Endou started a dating club (for finding good places to go on dates), but because he's considered the "Muddled Prince" he gets Hayanari, a ladies man to work with him. But are both Endou and Hayanari being totally honest in their intentions?

4) Total Reversal
Continuation to the third story.

5) Am I Not Good Enough?
Kuniharu's older brother Mitsu has just moved back home after breaking up with his live-in girlfriend. These boys have some unresolved issues to work out, but why bother talking about it when there are other ways to express your feelings...

6) Sleeping With Tears of Joy
Continuation to the fifth story.

From Esthétique:

The story is basically about a girl (16) and a boy (18) who gets married because the girl is believed to have a terminal illness. The boy swears to look after her. The story revolves around the hardships around being married when you are so young of age and in schooling.

The partner of a one-night stand makes a surprise appearance at school! Tsuroga Kyotsugu, a confident and handsome celebrity senior high student, makes straight-forward love moves on the boys' school infirmary doctor, Tokuyoshiu Manaya, turning Manaya's world upside down. Manaya has never had a thing for younger partners, but Kyotsugs's relentless pursuit and sexual prowess drives him wild with ecstasy. When his ideal partner turns out to be a younger man and a student, what's Manaya to do?

The clueless youth is still discovering the little joys of being in a conventional school, including the yearly health check-up.

Compilation of short stories:

• Koisuru Himitsu (Loving Secret)
Ever since kindergarten, Sumiko grew up never knowing love. At her school, they enforced strict discipline. Yet, tonight is the last "Free Night." Will Sumiko be taught "first love" by heading for that place?

• Houkago Host Club (After School Host Club)
Contuation of the first story

From Evil Flowers
• Snow Black Christmas: It’s Christmas Eve and Fuuka is preparing to meet with her boyfriend. They’ve been dating for 3 months and she’s still not sure if she’s supposed to spend the night with him, but in the end she gave in to his pressure. Her date goes all wrong when she is seduced by a beautiful dancer called Take. Who is Fukka going to choose?

• Sadistic Darling

Yanase Touko is a high school student and photographer. She is asked to take a photo of Setsuna, a very popular fashion model. She tries to consider it to be just another job, but finds herself responding to his suggestive gaze.

Includes oneshot Pika Pika Scandal which is about a girl who loves bishounen and thus scouts them to be actors.