From Viz:
The more Wedding Peach and her friends Yuri and Hinakiku discover about their new-found magical powers, the more Rain DeVilla and her evil henchmen vow to destroy them. In the never-ending battle between love and hate, three young girls are the world's last line of defense against the onslaught of evil.

Main story is in vols.1-6. Vol.7 is a recap volume.

“Tia, your brother has to do well for you to do well.”

By committing all sorts of evil acts, she made her brother the emperor. But her dedication was rewarded with betrayal. At the brink of death, the one who extended a helping hand was her arch nemesis, the righteous Grand Duke Cedric.

"Devise a plan."
"..."
"I can't think of anyone else who could turn the tables in this situation, Lady Rozan."
"..."
"Lend me your strength."

It wasn't possible to restore the balance of power for an empire that was already falling into ruin, but there was a way... to turn back time before everything went wrong.

With her blood and tears, she sacrifices her own body to cast ancient magic in order to turn back time.

This time, she wouldn't fail.

Returning back to her 18-year-old self, Artezia resolves to become the villainess for Grand Duke Cedric.

"Please ask for my hand in marriage. I will make you the Emperor."

"Uhm-uhm... N-Nice to meet you! I'm Nyoroko". A girl – not good at talking to people – is invited by her friend Matsuri and and challenged into doing a live broadcast for her first time. A youthful 4-koma comedy!

An official spin-off of the the super famous fantasy "The Eminence in Shadow".
OP main character × isekai reincarnation × misunderstandings!? This is the beginning of a spin-off of the super-famous web novel isekai fantasy "The eminence in Shadow".
Cid is a boy who reincarnated in another world, and decided to enjoy a scenario of being "the eminence in shadow, someone who meddles with the story from the shadows, and exhibits his true power in secrecy". Thus unfolds the story of him and the secret organization he leads—shadow garden—as well their their pleasant friends! An easy-going 4-koma manga starts right here and now!

I found myself possessed in a game I used to play occasionally.
And to top it off, I'm the female warrior of a barbarian tribe that only has bad endings.

...Alright, let's escape.

As a mountain-rescue volunteer, Shimazaki Sanpo is a man who has scaled the world’s peaks and is well acquainted with the rigors, joys, and splendor of mountains. Many alpinists make their way up mountain trails in the hope of reaching a summit in Japan’s Northern Alps, where Sanpo lives. With comments like “You really hung in there!” and “Make sure you come again!”, he cheers up the climbers as they head back to everyday life.

Won the 1st Manga Taisho Award in 2008.

On a day just like any other, a giant spaceship suddenly appeared and invaded Earth, obliterating entire cities in the blink of an eye. In the midst of the attacks, Kanna Fujimiya, amateur content creator, rose to fame overnight with her video coverage of the invasion. With her newfound popularity and charms, Kanna continues to cover the war from the front lines, but...!?

This amateur content creator reveals the truth behind the interstellar war in this science fiction thriller!

Miya made a bold high school debut in an attempt to change from her once *infamously* boring self. She gets involved with another girl named Hiyo, and is convinced to enter the beautiful world of Japanese traditional instruments. Inspired by a mesmerizing live performance, Miya ends up joining Hiyo's quest to establish a "Japanese music club" and form a Japanese instrument ensemble.

Late at night in the middle of my part time job at a convenience store, I had an encounter with a robber and was mercilessly stabbed to death.

As I was about to lose my consciousness, I thought about how much I wanted to do this and that when I heard a voice……

『The wish to be summoned has been confirmed. Granting Unique Skill 《Jack of all Trades, Master of None》』

Rude words such as that were said. Jack of All Trades, Master of None? Don’t screw with me!

Such thoughts and wishes were for naught as my consciousness faded, when I came too I was standing on a green foggy hill.

(no overpowered protagonist and no harem)
[Description from novelupdates.com]

The humorous adventures of a veterinary student, his friends, and his dog, as they learn how to care for all kinds of animals.

From Shinnen:
Nanoka's grandfather, right before dying, tells her that she's not alone -- she has a brother. But when Nanoka arrives at the address her grandfather gave her, she finds out that there are two brothers there! They aren't related by blood, and Nanoka has no idea which one is her brother. Is it Aoi or Kou?

Aikawa Eri dies in a traffic accident after staying up all night playing an otome game. She reincarnates as Eris, the villainess of her favorite game. In order to avoid the bad end, she tries her best to change the story, but as expected, it’s hard to rewrite fate…

She is abandoned by the prince. Even more, her life almost ends when she is attacked by a gang of thugs, but a young man appears...

Will the antisocial prince change her destiny? This is the reincarnated villainess’s rebirth romance fantasy!

The first life. After a tragic accident losing his family and legs, he ends his own life. The second life. He earned fame as the Red Demonic Master in Zhongyuan, but was betrayed by the man he trusted the most. And now comes his third life. In his life back in the modern world, Gang Jinho decides to live a normal life... However, he was too used to the Zhongyuan life to become a normal person! 'I wanted to live peacefully. But you are the ones who started it. I hope you're prepared for this.' In front of the threats of his new life, can Gang Jinho shake off his impulses as the Red Demonic Master and obtain the 'normal life' he desires? The adaptation story of a legendary martial artist in the 21st century!

From Mobots: During the closing years of the civil war period and uneasy reign of Toyotomi Hideyoshi, when men high and low scramble to follow conventional propriety so that they don't attract undue notice (or death) to themselves, there is one very bizarre individual who is known for his legendarily outlandish and wild personality, physical appearance and behavior. This series traces the dramatic adventures of Keiji Maeda from personal conflicts with his adopted Maeda family, brave combat exploits, travels to the capital, and relationships with famous existing figures such as Iyeyasu Tokugawa, Rikyuu the tea master, and Hideyoshi himself, to experiences with the foreign and Japanese Christian faithful.

The manga adaptation of the popular web manga! Yasu likes his kouhai, Moriyama, who is at the same time extremely assertive, deadpan, and extremely passive aggressive.

Scamming all day, every day, often venturing alone. He bluffs to get the ultimate power in this cultivation world?! world traveler Xue Que doesn’t always bluff, but he needs to.

A deformed female human go out with a pumpkin on her head to kill all who bullied her in the past.

I wanted to design!

A dream I have had since I was 12 years old and have nurtured since then. For thirty years I worked hard, not missing a single day, but the reality is that I'm a construction site manager constructing buildings for other people. If I hadn't made that choice back then... Would I have become an architectural designer? Thirty years after all that, a miracle happened to me.

I went back to my university school days 20 years ago, in 2010.
I'm 22 years old, but with 20 years of field experience, I'm going fulfil my dream of being an architectural designer and make world famous designs of my own!

Dragon Ball Super will follow the aftermath of Goku's fierce battle with Majin Buu, as he attempts to maintain earth's fragile peace.

Senya is just an ordinary guy, who wanted to become an astronaut as a kid. One day and suddenly, he's transported into another world after seeing on the rooftop of his school something like a "tower" going across the sky. There, he witnesses a ruined world, where skyscrapers are connected by suspension bridges. Senya, perplexed, manages to see a girl standing on the roof of another building, as well as a masked man holding a bloody weapon in his hands...