From AQUA Scans:
After a long fight and receiving a fatal wound, Aoi and his loyal retainer Kazuha sealed the chaos king, a demonic being that lurks in human’s hearts… but in their last moments another of Aoi’s retainers betrayed him and chains Aoi and Kazuha’s souls to reincarnate together in order to keep fighting the chaos king in all their lives. Centuries later, what will happen now both are reincarnated as boys and the chaos king is about to wake up?

New transfer student Mano Shouko just wants to live her life independently without relying on others. When Noda Seiji, the boy who sits beside her in class, catches her messing up the school festival art decorations on camera, she's trapped into accompanying him home every day. She wants nothing more than to change seats to free herself of him, but her feelings may change when she encounters someone from his past…

Yaoi Desire Revolution:

Kei, who loves to read shoujo manga and romance novels, is a high school student yearning for love. However, he understands that his unpopularity doesn’t make him fated for love. If he were just as handsome as his childhood friend, Kiyoshi, love would probably come easily… Thinking of this, Kei gets envious of Kiyoshi.

A slice of life comedy revolving around the conversations and daily shenanigans of three schoolgirls. Mina is lively and gets into mischief; Yukari is the class rep and usually follows Mina's lead; and Sanae is a member of the track club whom, unlike her friends, prefers to stay cool and act rationally.

This is one of the three Anthology books for the series "Gakkou Gurashi". The other two being "Kai" and "Goku".

Himekami Ringo is your typical ordinary high school student , whose friend to Hayachine Nagomi, a normal girl with black braids, wearing glasses and a serious look ... Well, not really normal. Unless you consider her dream being an erotic manga artist normal!

A 28-year-old female prosecutor Min-seo is just about to go out with Jun-hyun, a good looking prosecutor whom she has had a crush on since high school. With a successful career and her soon-to-be boyfriend, it seems like she is the happiest woman in the world. However, she suddenly time travels to her high school life while she is chasing a male suspect named Sang-woo; he was a senior in her high school. She genuinely does not want to revive her high school life because it was just the stereotype of a nerd. With a strict moral code as a prosecutor, a teenager’s appearance, and two attractive men, namely Jun-hyun and Sang-woo, around her, her second high school life will be nothing like her previous one.

Xing Zi hates guys, because whenever she bumps into them she hiccups! However one day she bumped into a guy with a bad reputation, but she didn't even hiccup!?

A boy who is bullied gets saved by his... Force Field Girl!

Eguchi Hajime is an elementary school boy with the worst (best?) super power ever: Being able to notice every little erotic moment that happens in daily life.

Tokio Abiko has left his hometown in Yamagata prefecture to enter school in the great metropolis of Tokyo. On his first day, he encounters one of his classmates, a strange boy called Japan Hinomoto. Tokio soon realizes that Japan is the master of a very peculiar martial art – Todofu-ken: the Metro-erritorial Pre-fist-ure Style! With each of the 47 styles themed after a prefecture of Japan, enjoy a hilarious and unique tour of the country!

Maria Shiina is a high school nurse. With no injuries or illnesses to take care of, what is a girl to do? Get rid of her boredom, of course! Follow along with Maria's shenanigans, in this hilarious Twitter and Pixiv comic by Oba Reiya.

1-3. Akai Propose
4. Kabocha yori Ai wo Komete
5. Mata no Na Renai Neurosis
6. Makeinu Croquette

1-4. Kaichou, Sukitte Itte mo Ii desu ka?
From Chibi Manga:

Shizuru, the president of the student council is a hard worker and beautiful. However, one day, she started being in competition with the vice-president, Ran...

From Shoujo-Sense:
Student council president Shizuru turns down all the guys confessing to her. Vice president Ran has his eye on her and resembles a faithful dog who follows her. Will he reach Shizuru's shielded heart?

5. Majime-kun to Bakayo-chan

6. TEA TIME LOVERS

Sano's ambition is to be the school's coolest guy, and has been gathering popularity among the female students day by day. However, there's a wall that he just can't overcome, and that is the second year, Azuma. Even with his notoriety for being a playboy, Azuma is still overwhelmingly popular, and that doesn't sit well with Sano.

The Amusement Academy in Kyoto, along with its traditional curriculum, teaches its students about game design, how to write graphic novels, and voice animation. Akabane Iori is a cute girl that mistakenly enrolls into game design school instead of pursuing her dream of being a graphic novel author. She tries to make the best of her situation, but with no knowledge or experience about gaming, Iori has a hard time. The two friends she makes, Hio Raina, a game programmer, and Kirino Sami take her deep down a niche otaku culture that may make forever change Iori.

A spin-off manga includes various comedy gags of characters in the main series.

She is a fat ugly girl with a short body; she's a girl who used to be a loner, loser and always hated by everyone. It only takes one of a stranger's ‘abracadabras’ to turn her into a beauty and to stop the bullying.

Though it comes with a price: she can’t kiss "him" or go under any rain, or she'll become ugly again.

The story is set on one day during summer vacation. It follows a group of boys who try to view a fireworks display from the town lighthouse to see if they look round or flat when viewed from the side. Meanwhile, one of the boys, Norimichi, receives an invitation from his crush Nazuna to run away with her.