From Intercross:

Kurosaki Mafuyu was a juvenile delinquent and head of her gang before her subsequent arrest got her expelled from high school. Now that she’s transferred to a new high school, she’s determined to become an “ultra-shiny, super feminine high-school student.” But with a new friend like Hayasaka-kun and a homeroom teacher like Saeki Takaomi (who may be more than he seems), will Mafuyu really be able to live a girly-girl high-school life!?

Gotou Hitori is a high school girl who starting learning to playing the guitar because she dreams of being in a band, but she's so shy that she hasn't made a single friend. However, her dream might come true after she meets Ijichi Nijika, a girl who plays drums and is looking for a new guitarist for her band.

Read from left to right

The manga centers around Noemi Kohiyama, a second-year student at Count High School, a school with no established reputation in the world of tankery. Her first match as a tank commander is against Saunders University High School. She directs the crew of her tank with her orders, and she follows the orders of their team leader. At that time, she remembers the words that her senior said to her.

From MangaHelpers:

Nagumo Yumi is an idiotic high school girl, whose post-graduation plan is to go to the US and become president. To her high school friends' amazement, she actually manages to make it to the US during summer vacation. After befriending some elderly veterans, she becomes convinced that joining the Marine Corps is the best way to move her dream forward. The waitress Linda Crawford joins her to sign up at the recruitment center, and she also meets friends among the new recruits, Rita Fernandez and Donna King. Will they have what it takes to become a Marine? [tethysdust]

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?

Shogo Ban is now a chef at Ristorante Legare. As the Yokohama branch of the Trattoria Baccanale he used to work at, he has been entrusted with the responsibility of head of the pasta section. Rejoin Ban as he struggles to meet the expectations of work and develop his personal relationships.

「Senpai, you dropped this.」

That sudden call marked the beginning of a relationship of an aloof senpai and his cute overenthusiastic kouhai-chan. Despite not having any contact previously except for using the same train station to get to school, senpai unwillingly agreed to a promise: from that day on, they would have to answer one question every day no matter what it was without telling any lie.

The disinterested senpai who doesn’t want to give up on his peaceful commuting time, and the passionate kouhai-chan who doesn’t want to give up on the only student taking the same train as her. This is the story of how their relationship will progress with just one question a day.

A new fluffy senpai- kouhai romcom from the popular web novel!

In the second year of high school, Iori Kagami is a boy who doesn’t stand out. Some of the students dislike him because of their impression of his twin sister, Shiori, who is famous as the perfect idol of their whole grade.

With special permission, Iori lives in a US military base in Japan and works part-time as an interpreter. While working with Cheena, Iori’s talents are revealed and he starts to look around at the people around him.

This is a story about how Iori’s talents are revealed when he gets involved with Christina.

The story of a young dragon girl being lazy, doing her best...and being lazy again. Ruri faces the usual issues: pushy classmates, annoying teachers, and...waking up with dragon horns?!

Hanami Matsudai is awkward when it comes to love and she doesn't know the proper distance for human relationships. You might as well call her a misanthrope. Her peaceful life is disturbed when she meets the unpredictable Ran Ojiya who just won't leave her alone!

The slapstick love comedy of an aloof and love-hating loner girl and a love-crazed handsome stalker begins!

Souichi Kirisaki, who teaches at a private middle school, has a problem. Three of his students, Senka Yutugami, Yuki Kitsuregawa, and Momoka Watarase, make fun of him. Souichi wants to be well liked, but the girls look down on him and tease him every day. Soichi is troubled, but the truth is that all three of them love Souichi, they just can't be honest with him, plus Momoka is a stalker... A sassy and cute romcom between a teacher and three middle school students!

Note: formerly a two-part Oneshot, it became serialized as of Chapter 3.

The greatest labyrinth of the 20th century, a drama for working men and women in a town called a Kowloon walled city. Daily adult romance in a gentle dystopia, a new life gently.

The Tokiwadai student council election is approaching. Shokuhou Misaki, one of the leading candidates, is in the midst of an election campaign in spite of her own expectations due to the people around her and the fate of being the head of the largest clique...!!

Tenma Gabriel White graduates Angel College as top of the class and is sent down to earth, along with her classmate Angels to study Humans as a High School student to learn how to better lead them down a righteous path.
At least that is how it should have gone down. Instead Gabriel got addicted to video games and junk food. She even tries to skip school. A failure of an Angel.
Luckliy her Angel-like Demon friend Vignette April Tsukinose helps keeping her on track. Especially by remarking that No-Good Angels get deported back to Heaven. A fate Gabriel wants to avoid because she thinks that her lazy self is her true self, and because Heaven is now too boring for her.
At school Vignette's Demon buddy Satanichia McDowell Kurumizawa causes mischief from time to time. She is egged on by an Angel named Raphiel Ainsworth Shiraha (2nd-best in class after Gabriel) who has slight Sadistic tendencies towards Satanichia.
From time to time Gabriel's shy Angel-underclassmen Tapris Sugarbell Chisaki pays her school a visit.

A lazy Angel, an Angel-like Demon and her pompous Demon-buddy Satanichia and Satanichia sadistic Angel "follower" in one High school.

Hijinks ensue.

Taken from Anime News Network:

Changing schools is something Yuuchi is accustomed to, due to his parent's profession, and with their recent venture to Africa, he is returning to his aunt's home after 7 years. The time that has passed since his last visit has faded his memories of the people he knew, and the ties that bonded them to him, including his cousin Nayuki. Slowly those people, coincidently all being girls, find their way back to him. However, time has passed and things have happened in their own lives that sets the tone for the series. Secrets that are coming to surface, and memories that are returning to not only Yuuichi, but to those surrounding him. A very heartwarming tale that touches upon a spectrum of emotions, mystery, and the supernatural.

A boy moves town, a friend of his mother with a strong Kansaiben accent takes care of him.

Mochizuki's high school life suddenly took an interesting turn when he reunited with his childhood friend, Tsukimi Kawaru, whom he had a crush on since they were in elementary. Through a coincidence accident, he found out that Kawaru is actually a wolf girl, who couldn't control herself around him. Because Kawaru broke her promise of keeping herself in check, her sister, Utsuru, decided to pull her back home, but Mochizuki didn't like that idea and he came up with a solution to allow Kawaru to continue attending high school while keeping her identity a secret...

He's a vampire destined to lead the world to ruin... So why is he working part time at a convenience store?! A 4 koma about demi-human working!

The new clerk in the convenience store where Amamiya works at is half human and half vampire?! Not to mention, their colleagues are a werewolf and an android... Watching these demi-human work with the half vampire Kirishima-kun should be entertaining in this working comedy☆

The (former) Takagi-san and her daughter, Chi-chan, bring you this teasing home comedy. Is Dad going to make an appearance too?