At the old and abandoned school campus, some students committed suicide in the past, leaving behind a blood curse. A student, dubbed 'Shinigami by other students, went exploring the old campus with his friends. Halfway, someone dropped their flashlight and a dismembered woman's body is discovered.

After his traumatic years in junior high school, the ultra-introvert Shizuki Keisuke decides to turn his life around, and gives himself a complete make-over for his high school "debut." His new high school life seems promising, as no one is aware of his hidden past...except for one person: Kusunoki Shizuka, who also changed herself in pursuit of a more successful high school life! As their fates intertwine, will Keisuke ultimately be able live a peaceful life in high school...?!

After dropping out of school, Kwon Daegun is preparing for his qualification exam. While working a part-time job in a convenience store he got into a fight with some thugs. Daegun, who easily overpowered them, is offered a project called “Iljin in Charge/The Bully In Charge” by the Educational Foundation, which has been closely watching him for a long time. He, who accepted the offer after much consideration, enters a high school that belongs to the foundation and defeats the core bullies of this school one by one according to the order of the foundation.

Koumoto Umi, a normal high school girl, falls in love with the pretty girl from the class next door, Segawa Shou. Even though she feels overwhelmed by her feelings, she can’t help but want to get closer to the mysterious Shou.

Masamichi Akita, a high school student whose motto is to live wisely, who meets Setsuna Rikudou, a high school girl with a violent supremacist attitude.

Akita is saved by Rikudou when he is tangled up with a delinquent, and is attracted by her overwhelming strength, asks her to teach him how to fight. However, Akita is devastated by Rikudou, who asserts that “violence is the only rule in this world”.

Akita's encounter with Rikudou leads him into the world of “violence”.

After tomboy Haedam is thoroughly friend zoned by her first love, she's determined to glow up before college. But when she makes the wrong impression on her first day of school, she realizes she needs the help of her reluctant neighbor. In exchange, she promises to put up with their living circumstances and keep his secret. What could possibly go wrong?

The story is about the forbidden romcom between 7 siblings.

From MangaHelpers:
A young noblewoman once dreamed of becoming a magic user like in the old tales, but her time in magic school has dimmed her passion. One day, a mysterious man comes to her rescue in the forest, using magic like in the old stories. Despite the fact that he is clearly skilled in magic, he is thrilled by the idea of learning new techniques. Since the only way to do that in this day and age is in magic school, he alters his appearance to school-age and decides to accompany her back to school.

Local bullies tormented Kotaro when he was a youngster.
They were the skilled wrestler Akari.
Kanae, a basketball prodigy, and Shigure, a prodigy in video games.

Every day, Kotaro competed against these three guys in their respective sports with the intention of winning. Unfortunately, he was no match for them.

As a senior in high school, Kotaro now has another opportunity to confront them and exact his retribution...!

But he will discover a secret that he never would have expected....

From a very young age, people noticed that Maria, the youngest daughter of a duke, was filled with potential. She was raised as the heiress of her house, until the birth of her baby brother relieves her of her duties. She scrambles to find a husband, but all the eligible bachelors in her duchy are taken!

At this rate, she's doomed to the life of a spinster!

Maria decides to study abroad in Rubini in hopes of finding a husband, with the help of her distant relative, Aida. But in a twist of fate, the Crown Prince breaks of his engagement with Maria, even though they've never met before!

"Huh?! I don't remember getting engaged!?"

Enjoy this fluffy romcom with a late-blooming villainess!

Kazama Kenji likes to believe he is something of a delinquent. Moreover, others seem to like to agree that he is. Of course, Kenji's gang finds their way to a group of four not-so-normal girls - Chitose, Sakura, Minami and Roka - and all at once, whatever reputation he may have, is nothing compared to the outrageous behavior of the girls. Shanghaied into joining their club, what will happen to his everyday life from that point on?

Indigo island is a place like no other, to deter emigration and attract tourism they have become the 'sex' destination as residents are punished if they are not have having frequent sex! On this crazy island, Hitori Misaki is still at school and one of the rare virgins trying to keep her secret and find love in such a lewd environment! The manga is based on the adult game "Nukitashi - Is this island Utopia or Dystopia?" by Qruppo!

Choose the world or choose her.

Ordinary high school student Shiraishi Godo harbored a "secret" - he possessed memories of a past life. In a world different from this one, he was a "hero" who saved humanity.

However, that was a story of his past life.

In this life, he was supposed to lead an ordinary school life—until the arrival of transfer student Mai Shiina turned everything upside down.

Hwajin Na’s teaching techniques are pretty violent for someone who works in the Ministry of Education. That being said, when punishments don't seem to work on even the worst of school bullies, there is no better man for the job. Sometimes you can’t get a good education until those bullies are taught a lesson.

Kotori-kun, who falls in love with his classmate Hiiragi-san at first sight, somehow wants to get close to her. Hiiragi-san is quite an earnest and lovely girl, but… She’s surprisingly a little careless--! This is about the charming school life of a careless girl and a pure boy who gets led on everyday by her -- a romantic comedy that’s a wee bit H sometimes but warm and fluffy to death.

Kaede, a victim of past sexual abuse, is obsessed with becoming "normal" ...

A bittersweet story about a boy facing coming-of-age questions about love, sexuality, complexes, and other troubles.

(Source: Ganma!, translated)

On the last day of my 19, an ill-willed school violence brought my life to a halt. And I returned to the past. So I decided to be the 'Malice' wiping out the evil.

In the near future a pandemic spreads around the world, so people hiding their mouth with a mask has become the norm. Natsuki, a girl who is secretly reminiscent of the world before the pandemic, and Hata, her classmate, suddenly become friends and share a small secret. This is the story of two "extraordinary" people living in the world of the "new ordinary"!

The manga will be an "archery girl comedy" centering around a girl who at first glance, seems perfect, but hides the fact that she is always on the brink of losing her cool.

Tales of a high-school calligraphy club.
A story about a high-school calligraphy club on the verge of breaking up that enters in a major competition while overcoming problems. Yuki, a promising female judoist, and Yukari, a quiet Canadian-raised boy who just returned to Japan, end up joining the club for the sake of maintaining the membership required to keep the club. Together with the old club members with unique characters, they gradually discover the fun of calligraphy and work together to win in the competition.

Note: Was nominated for 2008 and 2009 Manga Taisho Awards.