Taiyo Asano is a super shy high school student and the only person he can talk to is his childhood friend, Mutsumi Yozakura. It turns out that Mutsumi is the daughter of the ultimate spy family! Even worse, Mutsumi is being harassed by her overprotective, nightmare of a brother, Kyoichiro. What drastic steps will Taiyo have to take to save Mutsumi?! A spy family comedy — the mission begins!

It is common knowledge that it is best to become an adventurer when you are as young as possible. It is common knowledge that it is best to become an adventurer when you are as young as possible, because the magical power that is the basis of an adventurer's strength will hardly grow if you don't train it while you are young. But this man, Rick Gladiator, who became an adventurer when he was over thirty years old, had the combat power of an S-rank adventurer, the highest rank in the world. In fact, Rick has lived an unimaginable life with the members of the legendary Orihalcon Fist, a party of the continent's strongest adventurers. From dragons to vampires, Rick's fighting prowess, trained by his literally "monster" mentors, allows him to defeat elite adventurers one after another who try to underestimate him.

Translated with www.DeepL.com/Translator (free version)

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.

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...

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.

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?

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?

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.

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.

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.

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!

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 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.

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

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...