Intelligent and beautiful female high schooler Reika Sawatari and handsome and astute male high schooler Subaru Emura, both of whom with a certain fetish that nobody knows, have started their relationship after a certain event.

Onani means masturbation. And that's what this guy is good at. Every day after school, he sneaks into the mostly unused girls bathroom on the 3rd floor, and masturbates. Until one day, when he's caught by a bullied girl with a hidden agenda.
This is a story of mistakes, redemption, and the choices made in between. It contains the worst and best of the human condition.

From Echochi Scans:

Two families are tied together by a curse. Every 100 years, one person from each family must share the same fate for exactly one year. The pair will be subjected to 12 misfortunes where one will get hurt while the other must sustain their injuries in return.

When Kagura Ikumi was 7, his parents died in an accident. Since then, he has been living an ordinary life. Until the day of his 17th birthday where he meets a mysterious transfer student, Ichijyou Chihaya. However, this fateful encounter between them is only the start of their intertwined fate. For the next year, the two of them will be forced to face 12 misfortunes on the 13th of every month, a curse that has never left any previous pair alive.

Yamamura Sakura is an ordinary human girl that has recently transferred to a new school, but there's a twist! She has been placed in the "Aijin" class, Aijins being supernatural beings and demihumans! In her desperation to fit in in and to prove herself to her demihuman classmates, she tells a "small lie": That she's actually a succubus...and so begin her hectic High School days in a desperate attempt to fit in and hide this small lie!

The story of a boy and his would-be bully, who is comically inept at being mean to him.

Rokudou is a loser, and everyone knows it. He gets picked on at school, gets snide looks from passersby, and can only muster up the courage to complain in secret with his equally hapless friends. Looking to turn his life around, he desperately uses an ancestral artifact passed down in his family for generations: a scroll that is capable of subduing all demons. However, in the modern age it has a different effect - it makes all bad girls fall in love with him.

A high school 3rd year student, Miyamoto Dai, whose heart was touched by Jazz, continued to play the Saxophone alone in Kawahara, rain or shine, day or night, for many years. "I want to become the world's best Saxophone player...!!" Effort, talent, faith, environment, luck...which are necessary? A tale of reaching towards his goal recklessly and sincerely begins in Hirosegawa, Sendai.

Note: Was nominated for the 8th and 9th Manga Taisho Award. Won the 62nd Shogakukan Manga Award for general manga. Won the 20th Japan Media Arts Festival's Grand Prize for Manga.

Princess Michiru is in love with her private tutor, Sakaki. This is the romcom between the two's every day life.

Follow the daily activities of the members of the Game Club.

Was released in doujinshi format by Imitation Crystal, consisting of short volumes split into several parts.

After a series of bizarre incidents in his school, student Kometaki Okaka decided to investigate the cause of it. What he discovers will turn his world upside down.

Note: This series has been cancelled, on the mangaka's request, at 44 chapters. For more information, see here.

Izumo Kunisaki, a descendant of Izumo no Okuni, is often mistaken for a girl. It is the bane of his existence. His father and best-friend often laugh about it. To top it off, he plays the girl roles in his family's Kabuki troupe. In this short, he discovers that that curse is also his greatest source of strength and will prove just how much of a man he is.

From Aerandria Scans:

Goraihou Academy — A world leading bourgeois school where mysterious creatures gather. In order to protect the academy, the members of the student council with attractive appearances and fickle personalities stand up to...?!

We meet Sakuragawa Shinya, Goraihouji Tadato, and Mashiba Naoki. Handsome and talented Shinya is more or less the main character. Together with Tadato, the president of the student council whose father also happens to be chairman of the board of directors for the school, and Naoki, who is always hitting on an uninterested Shinya, Shinya discovers the haunted secrets of Goraihou Gakuen.

Things begin to change when a dark creature is discovered hiding within the school. The trio go to investigate and find Gen-san. And from there on they solve mysteries and hauntings and other paranormal events within the school.

Koishigawa Akane is a cute, stylish gyaru with gray hair. But she's got a glare that gives a bad impression to most of her classmates, who now keep their distance. Nishimura Chika is the only one kind to her.

A bimonthly yuri anthology/magazine. (Only oneshots with no page of their own listed)
Volume 1: • Love Fool, by Hattori Mitsuru An extremely short one-shot about two girls playing around in the water. • Camel, by Miyauchi Yuuka About addiction. • A Passing Story, by Ohtomo Megane A school doctor recounts a romance from her own school days
Volume 2: • Heart Ablaze, by Miyauchi Yuuka Its about the pain and conflicting emotions of unrequited love
Volume 3: • Unbalance, by Kigi Tatsumi Set in the same school as "Runner's High" from Tsubomi volume 1. It focuses on the interaction between the track team captain and the student council.
Volume 4: • Michi, by Yoshida Mikiko About a girl who's worried that her girlfriend doesn't trust her. • Triangle of Love, by Ogawa Kidari
Volume 5: • Roche Limit, by Sekiya Asami • The Snow Princess, by Mizutani Fuuka
Volume 6: • Scissors and Fingers, by Inugami Sukune A girl tells a hairdresser about the feelings she has for a certain someone. • Massaging the Woman I Admire, by Amano Shiro Its about women who work in a salon. A trainee has to massage a senior employee as part of her work evaluation, so she picks the one she has a crush on.
Volume 8: • God and the Rainbringer, by Yoshida Chiyu About a person that believes she can produce rain, a "Rain Woman".
Volume 9: • Under, by Kazuto Izumi
Volume 11: • Cotton Candy Love, by Tendou Kirin A woman steps in when she sees a girl being bullied.
Volume 12: • My Beloved Kawano-san, by Acutta Fumie About a woman who's in love with a co-worker. The Ocean Meets the Sky, by Koume Keito
Volume 13: • Monologue Love, by Shimano Yae A girl is insecure about her relationship.
Volume 14: • First Love, by Suga Atsushi A girl in the calligraphy club received a love letter. * Another Kiss, by Yurihara Aki April is a vampire and she's currently freeloading at Hikari's home.
Volume 16: • Aoi Honoo Kaoru Tsuchi, by Naruko Hanaharu A girl joins the pottery club to find out who made a vase she saw.
Volume 21: • December's Melting Snow, by Kobano A sweet story about a disillusioned young woman and a lonely but cheerful girl on Christmas

The most popular guy at school may not be so popular at all? To prove his worth, he confessed to the most beautiful girl in his grade, but she flat out rejects him! The boy does not give up, no, but when he tries to get close to her, he may be just falling for her for real?

Childhood-friends-turned-couple Ritsuho and Kyoichi have been dating for five years but naughty times are nowhere to be found. Ritsuho tries to bring their relationship to the next level, but Kyoichi doesn't seem very interested...?

A boy is initially overjoyed at the news of him having an older sister, due to his father remarrying to a woman who has a daughter. That is, until he finds out that his new sister is actually his school's strict PE teacher, Shina. With his father going off to live with his new wife, the boy will live with alone with his new sister. In their new life together, the boy finds out that Shina at home is completely different from Shina at work: clumsy, scared of insects, and kind.

After the re-marriage of her mother, Himari went to her former city. but, she'll meet again the boy who traumatized her in primary school...! But the worst thing is what she'll learn after getting back from school...

Keita Suminoe has two older (not blood-related) twin step-sisters who love him in a lustful way and have no problems expressing it. They even like to compete about it; much to the laughter of his friends (which he usually endures without problems). One day they come to his school to give him his lunch, resulting in him getting angry due to the atmosphere. To counteract his anger, they confess their tender feelings for him in front of everyone and leave. Feeling sorry he chases after them and says that he'll study hard in order to get in the same high school as them.

Fukamori Shizuku, a monstrous girlfriend who attacked me in my first day of high school. Every day I spend with this big deceiver is in ultra hard mode due to some serious circumstances!!!! A big trouble!