From KCG scans:
Hibi Kaho is a first year high school student with a love for the muscular. Spending her days admiring the muscles of club members has become her routine—until she meets the muscular prince, Natsume-senpai of the basketball club. Those biceps! Those abs! Kaho has fallen head over heels again. And when Natsume asks her to be the basketball club manager, her muscular-filled days start!

A battle between a girl who doesn't want to move from her haunted apartment and the ghosts who are desperate to haunt her & make her move away.

Ruu Brandel, a genius wizard with a talent for thousands of years. One day helped a beautiful aristocratic daughter, Franc and was to be assigned to “Magic Girls' Gakuen” where he acts as a teacher! Now, the “non-standard” teacher life by the strongest wizard opens!

(Source: MangaUpdates)

Makoto Toba hates everyone in his class. Everyone except, Sakura Touwa, an introverted high school girl who lives with her grandma and loves video games. But one day, Sakura disappears right in front of Makoto? Makoto has visited the site of her disappearance on the anniversary of her disappearance for the last 16 years. That is, until Sakura comes back from the time slip she was stuck in, and to her not a moment has passed. Now at 32 with a girlfriend, Makoto has to take care of his 16-year-old childhood crush. What could possibly go wrong?

"I'm sure we'll get the target we're after."
Shotaro, a ruthless killer, code name "S".
But one day, the target is the leader of the "Waruiyogumi" gang's only daughter - Furukawa, 17 years old.
The moment he points the muzzle at her, he feels something he never felt before! Shotaro feels his heart grow...

A genius killer, now a young girl's bodyguard?
The heartful killer comedy begins.

"There is a Ghost in my room-!"

The unpopular Shoujo Mangaka, Senai Yaro, is being tormented by a "Ghost" with lingering attachment to this world!

Ghost or not though the deadline still approaches...!

A terrifying horror comedy about "Ghosts" and "Deadlines" begins!

A story about a video production company going to another world to film adult videos.

She was a tomboy... big emphasis on "WAS".

1-page illustrations created and posted by @macharge on twitter

Artist’s Pixiv: https://www.pixiv.net/member.php?id=614227
Artist’s Twitter: https://twitter.com/macharge

Handsome and hardworking manager Oji has a secret. He is obsessed with "cute characters"! But… he can't exactly tell his subordinates that—(><)! A comedy centered around this "uncle's secret," which depicts the daily struggles of how he gets by in the world with his love of cute things. Where will manager Oji go tomorrow?!

Due to a request, the genius Dr. Sumiko developed an「AI boyfriend」.
Sumiko is pleased with her success, but the AI boyfriend who started will recognize her as「girlfriend」...!?
Initially, Sumiko rejected the AI boyfriend.
However, being subject to his constant love gradually leads her to acknowledge him...
A hot topic on Twitter and pixiv! A love comedy between a handsome AI and an unpopular woman begins ♡

The popular Fujimori Sachi never faces Kishimoto Arata, who sits next to her in class. No matter how hard Kishimoto tries to see her face, she brilliantly turns away from him. As a result, he has only ever seen her side profile. But she talks to him normally otherwise. This mysterious girl seems to have a secret...?
A cute school romantic comedy about a girl who only shows her side profile VS a boy who won't give up ♪

Asano Minato is hiding in plain sight. She’s tall, but she’s very quiet, and very withdrawn. She keeps her hair over her face and her head down. It’s not hard to see that she’s avoiding being seen. While eating lunch alone in her secret spot, she hears what is obviously an instrument. She immediately wonders why, since this high school doesn’t have a band. She knows that…because that’s why she transferred here.

In an unexpected turn of events, Toki, a high school boy, started dating Fumi Munetsugu, the school's superheroine. After hitting it off to a good start, they faced the next hurdle in the path of romance: a kiss.

Completely out of his element, Toki was unable to go for it.
The fate of the world, however, depended on it...

This is a romantic comedy starring an adult 30 year old woman named Ayako who is confessed to by a man 10 years her junior, 20 year old college student Takumi... A man she knows as the boy "Takkun" who lives next door and who has tutored her adopted daughter since he was 10. The revelation astounds her as she thought her daughter Miu and he were an item.

Having become overwhelming strong, a mage was bored with his life and decided to reincarnate in another era about 1000 years later.

But after reincarnation, the mage now known as Kurt saw a world where magic had declined, and the mages of the era are overall much weaker than those of 1000 years ago.

It also seems that Kurt is being looked down upon for his "Gold Magic" as it is called "Defective Magic Power" in this era.

In order to investigate the mysterious decline of magic in this era, Kurt enrolled in the Magic Academy at the Royal Capital and showed his extraordinary talent where he would become unparalleled in this second life of his too!?

(Translated with permission) Listen, she's just a normal human female, okay? So obviously she can get normal human married, just like any other human.
Definitely normal human and not a shapeshifting cat of any sorts, can't stress that enough.

Author’s Twitter: https://twitter.com/stylish_tanaka0

Makoto and Shinobu are my two childhood friends whom I haven't seen in years, but who had always been admired as being the manliest of men, even when they were kids. I, Ryunosuke, am going to be attending a high class school that was once an all girls school, but has slowly started to admit boys. Makoto and Shinobu were already attending there, so the three of us will now be sharing a room together in the school dormitory. I'm looking forward to the start of my rough but manly school life. However, when I get there, it turns out that they are both girls! GIRLS!! I now have to share a room with two people who I, for my entire life, had always thought were boys! They then tell me that it's a secret that they are really girls and that they've been pretending to be boys. Now I will have to help them keep up this rouse. What am I going to do??!!

Thus begins the story of Ryunosuke's manly school days which will now be filled with days of plumpness, sexiness, and the maximum amount of naughty slip-ups!!

From cotton candy scans:

Yukito is a handsome scholarship student who also excels at sports. Just starting high school, he has never had the time to think about things like love.

One day, he was saved by a girl he didn't know. Turns out, she's actually Yukito’s classmate who’s been absent since the school’s opening ceremony...

Shino Chigasaki is a high school girl who dreams of experiencing a romance likes those in shoujo manga. On the day of her high school entrance ceremony, she drops her commuter pass and the guy who picks it up bears a striking resemblance to the handsome boy in her dream...! Shino has been shot through the chest with Ichinose-kun's little gesture!? The comic version of "Kaishin no Ichigeki," a song written by Amatsuki, a popular singer.

Manga adaptation of the music video of the same name by Amatsuki.

Links:
Amatsuki ver.: https://youtu.be/Q7AVA1e0qN4
Hatsune Miku ver.: https://www.nicovideo.jp/watch/sm33546188

A manga about modern Japan where anomalies known as ‘hizumi’ or 'twists' appear and mix together objects. After a high school delinquent, middle school nerd, cat, and flea end up fusing together, they embark on a quest to learn more about the anomaly.