Let me tell you the story of Arcs Reytheft
A great feudal lord’s disgraced eldest son
Because he was weak, he his family left
And so he strives to become the strongest one

For you see, Arcs was once a Japanese man
And got sent to this world as soon as he died
His father wanted to have Arc inherit his land
But in terms of magic, he was disqualified

The background is set, and Arc’s goal draws near
Get back at the people who mocked his weak skills
Whether by training or cheats? That part is unclear
But who cares? It’s time for some self-insert thrills

Web Novel: https://ncode.syosetu.com/n6362fe/ (Raw)

"I'll annul our engagement!" My fiancé suddenly declared?! Apparently he's in love with the recently transferred count's daughter and is planning on making me the villain in order to annul the engagement. Although I have no lingering attachments about the engagement, I do have to claim a hefty consolation fee don't I?

I’m Jubelian? The daughter of the duke and the villainess of this novel?
I managed to avoid my death with some previous knowledge about my life, as this was my second time at it. Now, I should be able to live a peaceful life!

“I’m not going to marry a man unless he has everything. I want the most wealthy, famous, and competent man there is.”

I dreamt of a glamorous life as the daughter of the duke, but my father tells me the Crown Prince who is known to be a lunatic is to be my husband! As an extraordinary measure, I couldn’t help but start a contract relationship. That is, with a handsome side character that looks better than the main one.

“Why are you trying to avoid being engaged to the prince?”

“He’s scary. I heard that he even kills his own entourage if he doesn’t like them.”

A few days later, the prince sent a terrible letter to me.

“I will not kill you.”

Oh no, did I set up another death trap for myself?

In war, men become beasts. War makes gods out of beasts. When war ends... where do the gods go? Where can they rest their weary heads?

Wolves walk the forest of despair, the wasteland of lamentation, the sea of bitterness, in the time of dark and light. To kill those that were once their friends.

A clumsy princess and cool adventurer collect materials for their new country!

A new kingdom-building fantasy!

A comedic take on the daily lives of students in a co-ed high school.

Bayan is an outcast amongst the Siyo, a people who have healing powers. Considered worthless because she doesn’t have the ability to heal others, Bayan is sent to the court of Dhan, the Great Sun Emperor, who is cursed with unrelenting bloodlust and slaughters his concubines mercilessly. It seems that Bayan’s fate is sealed the moment she reaches the emperor’s palace and Dhan is fated to suffer from madness forever… But together, Bayan and Dhan just might be able to change each other’s destiny.

I became the sister of the villain, who shed no blood or tears in a war-ridden novel! I thought I was born again as the youngest daughter of a noble family, but I'm the little sister of a villain who's only being used!

A baby's body too fragile to survive in the Lagrange household, a brutal family that makes children fight for successors… I've decided to stick to the villain in order to live!

I need you to be my guardian until I run away from here. Raise me, villain!

The kingdom's hero, Ortus (♂), dies in battle after failing to fulfil a promise he made to protect the kingdom for the rest of his life. When he wakes up, he finds that he has been reincarnated as Seretina, the duke's daughter!

Even though she's a lovely, beautiful girl, she's still the same and determined to become a knight to protect her country in this life. However, besides being sickly and fragile, she is also faced with the harsh fate of a lady. She has to learn manners from her horrible mother, marry a man she doesn't want to marry, and many other challenges that will keep her from becoming a knight.

Then, on the way to the royal castle, a demon attack reveals her true power that no one knows about! A new heroine is born, with the strength to slay demons with a single blow, and the peerless beauty to captivate even people in high society!
She’s pretty on the outside, but fearless on the inside!
The chivalric, heroic fantasy of a feeble young woman begins!

When people die, they end up in the Ministry of Death, where they must fill out the necessary forms (the paperwork doesn't end at death!) to be able to ascend to heaven. Depending on the lives these people lived though, their application may not be approved by the employees of the Ministry of Death, and they may be sentenced to hell instead! Follow the daily lives of the employees as they judge and assist the dead in the afterlife.

Hong Lyon, a pitiful young princess with only a title, but no power nor authority, meets a young boy named Dowun who offers to help her become a true royal princess… but at what cost?

Winner of the 2019 Tory Comics Award.

Hatano Takaki is a third-year in high school who can’t wait to become a “real adult”. One day, he passes by a café and finds himself mysteriously drawn to the proprietress, a mysterious woman who seems to be hiding a secret sadness. Through her, through coffee, and through his encounters with the other café patrons, he begins to taste the bittersweet feelings of love and growing up.

What happens when several women with special circumstances compete for a rich handsome businessman's hand in marriage? Let the curtains rise on the “Courtship Battle Royale” show, where anything goes! Thus begins the beauty Gotou Yuuna's struggle to overturn her debt-straddled life!

In the year 2040, Japan has advanced technologically to the point of no longer needing people to work. However the cure for some diseases, such as multiple sclerosis, has not been discovered?people who have this disease have to stay cryogenized for 5 years to receive the cure. What was not expected when they woke up, was that they are the only hope for humanity to survive.

World's End Harem After World is the continuation of the story and not a sequel or different series to this, since it didn't end (as you can see with the volume release being 13 and not 1).

Teppei Sakamoto is a boy living in the countryside. He loves soccer, and all his soccer skills were taught to him by his sister. Finally, his sister wants him to join in Mizumoto High School soccer team. Teppei's turn in life has come!! How will this soccer newbie fare in the new environment?

Makoto Kubota wandered through life, not taking things too seriously or looking too deep within himself. His job as the head of the Izumo Group's youth gang kept him pleasantly occupied with yakuza wars, mahjong and assassinations... Until the day he stumbled upon a strange drug called Wild Adapter that produces bizarre side-effects--including death. Forever changed, Kubota becomes entangled with a drifter named Minoru Tokito, and the two form an unlikely companionship that draws them deeper into the mystery of Wild Adapter...

From Shoujo Manga Maniac:
Chigusa Tsukikage holds the rights to the play "The Crimson Goddess," a lost masterpiece that many would love to see brought back to the stage.
Tsukikage, however, won't allow the cherished work to be diminished by an actress who isn't worthy of playing the title role. Fortunately, she has found two young actresses that just might be worthy: Maya Kitajima and Ayumi Himekawa. Though both actresses are exceptionally talented, only one can win the coveted role.

Nobuko Tanaka is a college student working part-time at a supermarket. Due to her shy and plain nature, her name is constantly mistaken for “Mobuko,” which has the kanji for “supporting role”. So when she develops feelings for her kind co-worker, Irie, will she be able to gather her courage and grow closer to him? Will this “supporting role” actress finally get a chance in the romantic spotlight?

The world is filled with cruel scum, ranging from petty thieves to sociopath maniacs. When a vile low-life inflicts pain and suffering on innocent victims, sometimes their anger becomes overwhelming. Whether their damage stems from romance, finance, reputation or even a death, these victims feel trapped in their own skins and lives.

Those victims who can't stand it anymore call for the mysterious woman, owner of Uramiya, the "Revenge Shop".

The Uramiya specializes in executing revenge schemes. The vengeance their customers request on their bitterly resented enemies could range from financially destroying them, to smearing their social reputation, to even taking their lives. As long as you pay a fair price, the Uramiya will guarantee you get the revenge you deserve.

The setting of Fate/Apocrypha is a parallel world to Fate/stay night where the Greater Grail was removed from Fuyuki after the Third Holy Grail War and disappeared for many years. Around the 2000s, around the same time as the Fifth Holy Grail War would have happened, the group that plundered the Grail, Yggdmillennia, openly declares their secession from the Mage's Association and that they are in possession of the Grail. The Association dispatches fifty magi to retrieve it, but all but one are instantly slaughtered by Lancer of Black. The one remaining manages to activate the reserve system of the Greater Grail, allowing for the summoning of fourteen Servants in total.