From Chibi Manga:

1) Jun'ai Twitter
Reona gets into Twitter. Today, she looks at her beloved Tokuda-senpai again, while Mori-senpai worries as usual...
At that time, her followers increase and... and that, no way, that's Tokuda-senpai!?
And when she thinks she can now get all ...♥ with Tokuda-senpai without any hindrances, Mori-senpai is unusually nice. And Reona, who Mori-senpai is worrying about...!?

2) Onna no ko wa mainichi tatakatteiru

3) Nigai atashi to amai kimi

4) Ashita, Kimi to koi shiteru

Volume 1: Chapters 1-2: Being the notorious school president of Seiryou Academy, Hashizume had control over every student and staff member. But when the transfer student Misonoi appears with his nonchalant and unassuming attitude, Hashizume sees his newest challenge in taming this new toy.

Chapters 3-4: A story about cousins who fall in love.

Chapter 5: Oneshot about professor/student relationship.

The Series Goes Like This:

Volume 1: Seiryou Saikyou Monogatari (Scandalous Seiryo University)

Volume 2: Seiryou Saikyou Monogatari Returns (Return To Scandalous Seiryo University)

Volume 3: Seiryou Saikyou Monogatari Limited (Beyond Scandalous Seiryo University)

Volume 4: Seiryou Saikyou Monogatari - Yano x Ishida Hen
- Serenade

From CMX: How far will one man go for love? Find out in SEIMADEN, the tale of Laures, who agreed to become a demon in order to free his one true love Erise from a demon king! Laures became the next Demon King, and Alice was freed — with death. Laures, however, realized that his new inhuman status gave him a rare opportunity: by being the cruelest and best Demon King, he survived long enough to see Alice reincarnated, and then he would effectively be reunited with her. Laures, after living through the centuries, has finally found his beloved reincarnated as Hilda, a dancer who has no memories of her own past or identity. Now he must see if she will accept him as a creature of the underworld…

Losing her parents and being supported by her childhood friend Chikage, Yuiko is living a modest life with her grandfather. But one day, a man with black clothes, white hair, and red eyes that hold a terrifying beauty appears before her. He says..."I've found you. My sacrifice..." Is there a way for Yuiko to resist her unfolding fate?

From SAKURA Chitose Fan Page:
While running to her new school in the morning of her first day, Marimo has an encounter with three guys from her school, that leave her a strange pack. Later on, in her class, the three guys appear again and kidnap her! Marimo is very scared until she realizes that they want the pack again... as it happens, they are the members of one of the school clubs... a club dedicated enterely to Kero-chans and their merchandise! (These are that typical cute Japanese green frog....) Marimo enters the club and starts to fall for the leader, but this, of course, is only the start of the fun....

Very short story about a secretary in love with his married boss.

The all out story of two guys, the wild and completely unpredictable Hana and the reliable, cool but somewhat naive Ikkun in a cute relationship filled with passionate love and jealousy!

A short story about the time between spring and winter . When the spring get up , the winter will disappear ...

From Exiled Rebels Scans

Segawa Kotarou loves bonsai more than anything. He loves just reading about moss and plants so much so that the people around him tell him he sounds like a grandpa. As a side job to pay for his university fees, Kotarou is a cram school teacher during summer vacation. While at the cram school he meets Nakatsu Towa who works at a computer repair shop below the school. When Kotarou finds out that Towa also raises bonsai, he asks to be friends. However, will it just be friends, or will something more come from it?

1-4) Suzuhara Jan is a new college student determined to devote himself to his studies. But a chance meeting with handsome professor Aoyama and discovery of the "Game to Win the Professor's Heart" become a distraction. Though he can't seem to stay away from Aoyama, the game may be impossible to win...

5) Takashi Namasami is wandering lost in the woods when he's found by young master Wakamiya Hideto. But the pushy youngster has a requirement for rescue: Takashi has to be his pretend lover!

From Blissful Sin:

1-2) Scarlet
College student Akio is dating his beautiful classmate, Ryou. Unable to stand the slightest loneliness, Ryou accepts any girl who approaches him. One day, Ryou introduces Akio to a girl he is thinking of marrying which makes Akio decide to completely break it off with Ryou. Instead, a heart wrenching love story takes stage!

3-4) One Night Stand
During the day Harumi is just a normal businessman but when night comes he changes into a different person.

5) My Lover
Keito wonders why he is still in a relationship with the overly depressive Naoki

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) ?

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!

Nonomura Heita, a high-schooler, takes care of the last boarder left at his grandfather's house after his grandmother passed away. The boarder is a translator named Miharu, who insists that Heita make a bentou for him every day. Should such a wifely duty be given to a high school boy? Or will the duties someday go beyond just making bentou?

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

From MangaHelpers:
Sawamura Soushi is a soldier in a war-torn future. He meets a cute, innocent young girl named Nadeko, with whom he starts up a friendship. Nadeko is a flower girl, one of the girls who has a flower growing from her heart. One day, when Sawamura is trying to protect her from danger, she confesses her love to him and protects him with the plant growth that suddenly comes forth from her body.
Sawamura soon learns that there is a special squad of flower girls and their partners, and that their abilities are awakened when they fall in love. But does he really love a girl that is a decade his junior, and will he be willing to be a good partner for her? What's more, he learns that the awakening also starts the growing of the flowers in their bodies, so that the flower girl soldiers have only a short while longer to live. How can Sawamura and Nadeko make the best of such a terrible situation?

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?

• Shounen
Miyaji is suddenly approached by Hayama, her senpai, who tells her "Inside me lives a boy, and he's fallen in love with you."

• Wicca