From TCMANGA:

Just like an ordinary girl, Momoka enjoys her boyfriend's company, eating breakfast together, dating, etc. The only difference is her boyfriend, Hiro, is an upcoming actor in the entertainment industry. Therefore their love life has to be kept in secret. But Hiro's manager wants them to break up in order to not taint Hiro's popularity...

Also includes 2 extra stories.

From Midnight Scans:

Sensei, the person whom I long for, whom I wait for, whom I love, and whom I want to be with. At night, I always think about you, Sensei. You are similar to me, but you have a completely different personality. The moment I fell in love with him, school has become a different kind of place because of him. The love between me and Sensei has begun to grow.

Includes the oneshot, Fake Letter.

They are cool! They are hot! They are irresistible!
No girl will refuse to share her bed with these Sensei.

1 & 2: Baby, Baby ー A Narcissistic Scriptwriter by Takahashi Yuu (高橋ゆう)
While enjoying a meal with her friends at a restaurant, Miyako expresses her dislike for the famous & handsome scriptwriter Yuuji and calls him a narcissist. Yuuji overhears her and gets really pissed off. Later he encounters Miyako as an employee of the publishing company he has recently signed a contract with.....

3: Higurashi Naku Yuugure Ni ー An Intellectual Librarian by Saionji Michiru
Touno Sensei's wife passed away 3 years ago and since then he had locked up his heart. He wanted to lead the rest of his life in the memories of his wife and so he left his teaching job and diligently started to take care of the library his wife left him. Nene who was once Touno-sensei's student is now a regular at his library. Nene has a hidden dark past due to which she has grown averse to love. Can these two scarred souls find solace in each other?

4: Love & Peach ー A Perverted Doctor by Ashika Nozomu
Izumi is suffering from haemorrhoids. She visits the hospital for treatment but slaps the proctologist Dr. Shuu since she mistakes him to be sexually harassing her. Coincidentally, that evening, Shuu and Izumi meet at karaoke on a group date and things start to get interesting...

5. Sweet Teacher ー A Confident Trainee-Teacher by Earithen
Kiori is currently working as a trainee teacher to obtain a teacher's license without which she won't be able to graduate from the Department of Education. But the problem is that she doesn't really aim to be a teacher and so she slacks off in her duties. Her perverted supervisor offers to help her get all the required credits in return for sexual favours. Helpless Kiori yields to his demands. Can the good-hearted Kazama-kun, another trainee teacher, save Kiori from being taken advantage of?

6. Ai Wo Hore! ー A Cute Homeroom Teacher by Koishikawa Funi
After being betrayed by her first love, Futaba believes that she can't fall in love ever again. She feels herself buried under a huge pile of snow because of the unexpressed feelings that have been accumulating in her heart. Can the cute child-like Horishi-sensei, her new homeroom teacher, melt her frozen heart (and body) ?

God has been dead for some time, and the angels in heaven have decided it is time to find a replacement. Though very reluctant, the angel Rain has been chosen as one of the four candidates in for consideration to become the next god. He and the four other candidates will decend to earth for one year so that they may perform a test to determine their suitability for the position, with the ability to reveal their true identity to one human being of earth. Thus, Natsume Shirou, a very normal high schooler with dreams of becoming a teacher, is chosen by the angel Rain to be the help. As for the test, Rain and Shirou must raise a 'baby', with no thoughts or emotions of its own, into a creature as close to a human as possible

Meet Suzuki Mika, teacher at Okitsu High School. Mika-sensei is a good teacher, but she has a small problem... literally. Although she's 27, she is only 148 cm tall, and has the face of a child. As a result, it is often difficult for Mika-sensei to get anyone to take her seriously.

From Fantasyshrine:

"There's no way you can run away from me-- I MUST HAVE YOU!" said the super-egotistic ex-host Hisakawa as he carried a bouquet of roses, to the beautiful yet uptight sensei, Shindo Misaki!!

Under the masterful fingers of his pursuer, Misaki was assaulted by a powerful lust, which rendered him defenseless to Hisakawa's advances. Though in truth, it was Misaki's unconscious wanton responses that captured Hisakawa's heart!

1. Sensei no Jijou (The Cause of my Teacher)
Tooru, who is fond of glasses, confesses his tender feelings to his teacher. The teacher accepts him, but everytime they kiss the teacher takes his glasses off. Does he not want to see Tooru's face when they kiss?

2. Shidoujitsu nite (In the Guidance Room)
Souma Kazunari is a student that is regarded as strange by fellow students. He is in love with his male homeroom teacher Fukuzawa Hajime. Some students bully Souma by hiding a porn video in his desk, and it is found by the teacher. Fukuzawa calls Souma to the guidance room to give him a lecture...

3. Torawarebito, Hitori (A Person Held Captive)
Iijima and Ichikawa are childhood friends; Iijima has been in love with Ichikawa since they were small. He has chased after Ichikawa all his life, and has now entered the same company as him. After a drinking party where their supervisor has been hitting at Ichikawa, Iijima finally looses his cool and ties Ichikawa up...

4. Wakage no Itari (Youthful Indiscretion) — Sequel to Shinobu Kokoro wa.
The ninja Hiiraki refuses to follow his captain's orders to go on a mission separated from his lover Asagi and is thrown into jail. Will Hiiraki's and Asagi's relationship survive this?

5. Wakasama, Gomen! (I'm Sorry, Young Master!)
The son of a lord, who feels that Kurenai, his guard and martial arts teacher, took a sexual joke too far, challenges him to a match.

6. Umi no Miya no Ko (Child of the Palace in the Sea)
A scholar teacher of the Mountain palace country escorts back a spy boy of the Sea palace country (which dominates the Mountain palace country) who is bullied.

Sensei no Jijou (The Cause of my Teacher) extra.

Asahi's never been in love, so doesn't know what it feels like. He's in a relationship with his friend, but with graduation approaching, isn't it inevitable that their lives will go separate ways?

Lovely manga anthology on love and sex, plus a bit of humor for female readers. This book features all the stories of female characters falling love with her senior students. Includes 6 works from 6 authors: 1) "Zakuro no Mi wo Abaite" (Opening Pomegranate Fruit) / Mayu Shinjo : Prideful Kotoko is greatly admired at her school, but will that change when ruthless Takahiro backed by a powerful family sets his eyes on her? 2) "Sexy Shiyouyo!" (Let's Do Sexy!) / Yuuka Kousaka 3) "Jun-ai Egoist" (Pure Love Egoist) / Mio Ayukawa 4) "Netsu-ai Byoutou" (Love Fever Hospital Ward) Yuka Murata 5) "Wagamama na Kuchibiru" (Selfish Lips) / Haruko Kurumatani : Yuu gets a job acting in a commercial with popular idol star Kano Itsuki. When Yuu works up her courage to introduce herself, he kisses her! What does she do but punch him. 6) "Double Face -Akogare no Senpai Hen-" (Double Face -Senior Student Version-" ) / Kai Uchuuda

A military test accidentally sends a modern-day army back in time to feudal Japan. When their actions in the past begin to have an effect on the present, another unit is dispatched to retrieve them. But the commander of the lost unit has other plans. He intends to use his advanced technology to conquer Japan and change his country's destiny. -- {Summary by Mangaupdates.com}

From In the Water:

Biri Kobouku's gaze always happens upon a figure. For some reason, she can always identify him, even though she's never seen his face. Can someone fall in love with another when they've only seen them from behind?

1-2) Holding You/Whispering from Behind
Maki was shocked when he bumped into Nagayoshi sensei wearing just a white robe with the instructor. When they met again after some time, will Nagayoshi be honest with his feelings now?

3) Vertigo
Makoto is a rookie police officer when his grandmother dies and he's left all alone with no one left in the world. Mystery man Serizawa appears, determined to pay back a debt he owed to Makoto's late grandfather by helping the younger man. Makoto finds himself relying more and more on his new friend, but how much does he really know about him?

4) Water Bed
Salarymen Hiraoka and Teramoto meet suddenly after many years. Former college classmates and swimmers, Hiraoka was always entranced by Teramoto, but unable to meet his eyes until one day when Teramoto stole a passionate kiss...

5) Poker
Undercover police officer Kiriyama finds himself at the mercy of ruthless gangster Kamou.

6) Cage
The Takasugi and Miyoshi family have been at odds for decades, and the current generation is no better. But when a terminally ill Takasugi is cast out by his family, Miyoshi takes in his rival. Trapped in a luxurious mansion and waited on hand and foot, what are Miyoshi's plans for the helpless invalid?

7) The Imprisoned Sun
Kajiwara Tsukiya's vacation in India gets off to a rough start when his passport and belongings are stolen. Taken in by the wealthy and powerful Suria, their short time together becomes precious. However, enchanted by Tsukiya, Suria has no intention of letting him go...

8) Everything's For Your Sake
Company President Fukaya Seiji spends a drunken night with his secretary, Houshou. Now he can't stop thinking about the cool beauty, but Houshou acts like nothing happened!

9) The Sweet Poetry
Prince Chris doesn't want the arranged marriage his father set up, he's in love with his tutor, Sakura. But even though they're lovers Sakura refuses to admit his feelings.

From Viz:
Winner of the 2002 Academy Award for Best Animated feature, Spirited Away tells the story of 10-year-old Chihiro, a girl in the midst of a move to the suburbs who wanders into a strange town and finds a world of spirits ruled over by the mysterious Yubaba.

An anthology of 6 stories. 1. With Those Fingers, Those Lips -- A playboy decides to mend his way? 2. Shakuren/Miraculous Love 3. Toge Made Itoshii (Dear Until The Thorns) -- A sweet story of how a girl found love after her ex cheated on her 4. That's What Makes You A Liar -- What's real and what's not? The heroine learns to stand up for herself. 5. Make Love to Me with That Voice -- Erika loves Takashi but sleeps with Touya who has the same voice 6. Love Idiot -- Strong girl becomes an absolute idiot when she falls in love. Luckily, he realizes it and helps her find herself again.

It's 1904. Natsume, the son of a old and prominent family, is cursed with a small, frail body. Because of this, he isn't qualified to enlist in the Japanese forces for the upcoming war with Russia. He is unhappily resigned to becoming a teacher. That is until he meets Daigo, a student. Daigo reminds Natsume that he could inspire and lead just as many future soldiers and leaders of Japan as a teacher, as he could as an officer. Daigo promises to become a great solider under Natsume's tutelage. But unlike Natsume, Daigo isn't in it only for the honor of Japan.

From Art of Life:
1-3) Select
For no apparent reason, Hirai — the year's top student — found it difficult to maintain his focus durning Onoda's class, thus created a headache of an experience. And Onoda, whom was confronted by Hirai saying "This way I can be alone with Sensei," will...?

4) High Play
Riku never really liked shy Shizu when they were kids, but now years later he just can't seem to deny him anything.

5) Hot
Ohmura seems to have the worst luck when it comes to card games. Since he's always the poorest man in class the winner of the game always gives him orders. While doing one such order he happens to meet Izaki his Senpai who is sunbathing outside at school. With this new encounter will his luck change?

This is a compilation of oneshots that includes:

1) Untitled
2) Before Dawn
3) Alfalfa
4) 4:30 PM, Sunday//6:30, Afternoon, Sunday
Part 1 - Summer Memories
Part 2 - A Girl in the Brilliant World of a Boy's Daydream
Part 3 - Coming Home
5) The Typical Day and Melancholy of Super-Imaginative A-ko
6) How to Spend a Day Off
7) 17
8) What a Wonderful World
9) Tokyo
10) The End of the World
11) Snakeman and the Great Space-time War

Yuri is a 20-year-old male prostitute. Half of the money he makes goes to paying the huge debt that his father left when he died. His one goal in life is to find his younger brother Nagi, who disappeared after the same car accident that killed Yuri's father and mother. Suddenly a boy turns up, claiming to be the lost Nagi. Can Yuri's long search be at an end? Does Nagi have anything to do with one of Yuri's former clients being murdered?

Glen and Linus are orphans training to fight for a country on the losing side of a war. Glen has a secret that only Linus knows. Will Glen's secret stay hidden? And what exactly is Linus hiding?

Takeda is diagnosed with cancer and feels that he has nothing to live for. His wife had died of cancer and his only daughter has been missing for fourteen years.

One day, when he is about to attempt suicide, the phone rings. It’s the police, and they inform him that the dead body of his long lost daughter has been found, that it appears to have been a homicide. Takeda is crushed but resolves then and there to spend the remaining days of his life hunting down his daughter’s killer.

The time left for Takeda to live equals the time left to put the murderer behind bars. Life is a heart-wrenching story about a father’s willpower and his search for the truth.