From Operation Boredom:
It is currently the Taiheimeji Era. It is a reign ruled by the Tokugawa shogunate. Inside this shogunate, there is a group of warriors that support the government. They are the Manyuu Clan. In this current era, breasts mean everything. If you have breasts, you are guaranteed wealth and popularity. If you lack them, you are rarely considered "human". Members of the Manyuu Clan help raise the future big breasts. Written on a secret scroll possessed by the clan, there is said to be various techniques on how to grow big and beautiful breasts. Chifusa is to be successor of the clan. However, she takes the secret scroll and runs away with it, hoping to fight against the cruel world that the Manyuu Clan has created.

I would die if it would allow me to touch you. That is my love. Airhead Yuri-chan and her boyfriend Aono-kun had a perfectly normal relationship until one day Aono-kun suddenly “passed away” … They will never be bound together, and they cannot even touch. This is their difficult and almost too sincere love story.

Delinquency has become a major problem among the youth, especially the high school population. Taking the matter into their own hands, the government has created a special school just for these troubled youths. Kang Hae Hyo, a seemingly normal high school student who is bullied frequently, somehow ends up in the school! He's not sure he belongs there, but something him, and his past, may be discovered at this school...

I entered the world of a novel suddenly. I thought that I could return to reality by falling in love, but death was what awaited me in the end. Defenestration, strangulation, poisoning, drowning, and burning to death... Even after dying a hundred times and returning, the novel still doesn't end...

Karen Haier, who greets her 117th birthday trapped within a novel, now decides to become a murderer.

After reincarnating in a different world, the great sage Ephthal spent all of his life researching magic. However, he who had aimed to reach the summit of magic, knew of the limits of his talents and fell into despair, thus closing the curtain to his lifetime.

However, 400 years later, he reincarnated for the second time and enrolled in a magic academy using the sorcery and knowledge he acquired from his previous life. As if to sneer at the state of magic that had been in decline for the past 400 years, he easily invokes legendary class magic!

With overwhelming power, the entire world will kneel before him.

A story about a boy who doesn't want to see the girl who wants to see his boobs.
Artist’s Twitter: https://twitter.com/kantyo4545

The Crimson Demon of the Battlefield, Jang Kirin. He spent his days in blood splattering war in the North for the last 13 years.
“Live a normal life.”
Those were the last words the general left me.
“The best way to live normally is to be an innkeeper!”
The youngest of my unit gave me this advice.
I came all the way to Hangzhou believing his advice.

But why is living a ‘normal life’ so much harder than fighting in a war?

Manga supplementary of Yoko Taro's mobile game SINoALICE.

Can I kill a person as a police officer!? It's been three and a half years since I became a yakuza, and the infiltration never ends.

Kanetaka of the Higashi-Sheath Association is a gangster with a strong arm who has climbed up to assistant young head.
He landed in Okinawa at the command of the organization and killed his target, Kino.
That night, Kanetaka vomits violently.
He was an undercover investigator at the Metropolitan Police Department!
What is the purpose of Kanetaka's actions!?

For 52 years, Takumi Fujimura, a craftsman who has continued to hone his skills at a town factory, finds himself in a predicament when he has a dispute with a client and stops getting loans from banks. After many years of hard work, he finally collapses, but he awakens in a different world where he meets Frau, a girl who aspires to become a hero. With the benefit of modern technology and decades of crafting skill, can Takumi take this new world by storm?

Official Raw: https://www.pixiv.net/artworks/115806876

Both of them are straightforward people. Once they meet, they quickly get to know each other better. A heartwarming romantic comedy that begins with a certain incident. Shibata Kasane, a graphics designer at a toy design and development company, is troubled. Her troubles started when she grabbed her colleague Enokida Subaru's ass by accident! Kasane was intrigued by how similar Enokida's ass and her favourite childhood character felt. At the same time, Kasane felt guilty because Enokida might have been uncomfortable. Enokida said "I don't mind" but had a pained and frightened expression. Kasane was overcome by the urge to apologise profusely! On the other hand, it looks like Enokida is hiding something.

A young man who can see people’s sins in the form of youkai gets employed at a sort of odds-and-ends agency run by supernatural beings.

The Jester ― More commonly known as the ‘Playboy’ Dylan, was fired from the party of the Heroes. The self-centred Heroes didn’t understand Dylan’s importance to the group.
They were just a group of one-man teams. Not interested in cooperation at all. Any failures are blamed on the Jester. Dylan, who was disgusted with such companions and was sick of playing as their comedic foil, happily accepted being kicked out.
The Heroes didn’t know. After saving them many times over with his magic tricks, the level 99 Jester can change his job title to that of a ‘Great Sage’.
“Life, how about a rewrite?”
He’s done being the clown. From here on out, he’s going to take the leading role.

A bottom-feeder JK and a yankee boy. Bento connects these two opposites in this coming-of-age love story!

One day, Omori Sizuka, a high school girl who loves to eat and is bullied by bullies, discovers the secret that Akira Kurose, aka "Ashura-kun," the only tough yankee at school, enjoys cooking. The next day at lunchtime, Akira summons Sizuka to the rooftop and asks her to eat his homemade lunch box to keep her mouth shut.

"A delinquent guy likes a chubby girl for who she is but he’s worried about her health cause she’s eating nothing but unhealthy food. So he starts making lunches for her so her diet gets better and then romance begins"

A story where a girl of light fights against the darkness of the world.

Lee Ahreum, who has precognitive dreams, started to recall the nightmares that she had already forgotten. In her notebook, she found things that she doesn't recall writing. "I never wrote anything like this! But... I'm sure this was my dream..." One by one, the monsters that she saw in her dreams, as well as people with special abilities, began to appear in reality.

"Tired of life? Be a tanuki!"

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."