Meet Kaichi Takemura, aged 82. Owner of the Takemura Dojo and master of the Churyu Akai-Jutsu martial arts, he is now wheelchair-ridden due to severe lung cancer. He is estimated to only have two months left to live.

Realizing his time on this earth is ending, Takemura creates a bucket list of things he wants to do before then, which he shares with his nurse Tokiko Tanaka. However, one day his illness flares up, and Tanaka wheels him to the nearest doctor as fast as she can.

When he comes to, he finds that the two of them aren’t in the emergency room of the hospital. In fact, it doesn’t seem like they’re in Japan at all…

Tasuku Nakamura, who was thrown into the sea in a marine accident and tried to help his best friend, ended his short life of 25 years. Formerly a mediocre office worker, when he opened his eyes, he was in the form of a six-year-old baron's daughter, Sophie Linier. At first she was confused by the changes, but she was reincarnated as a beautiful girl and decided to live as a lady in a different world.

One evening in early spring, eight-year-old Erica Aurelia realizes she’s the detestable little villainess from an otome game called Liber Monstrorum ~Phantom Beasts and the Winter Princess~. As if that wasn’t bad enough already, Erica’s role in the game is to pester the main character... and then die in order to kick off a mysterious series of events! These incidents are different in each love interest’s route, and seven routes means seven deaths to avoid. Not one to throw in the towel, Erica knows she must take action to destroy her death flags—and since her life is on the line, there’s no time to lose!

Official English Light Novel : https://j-novel.club/s/deathbound-duke-s-daughter

Summary from Comic Walker :
Holy Brave, Toudou Naotsugu was summoned from another world to defeat the Demon Lord. Priest Ares was ordered to provide support for the the hero while hiding his true level, however... This is a story of High Priest Ares guiding the Holy Brave on their path to become a Hero.

I was reincarnated into the body Cecilia Silvie, the villainess of an otome game.
According to the plot, what awaits me in the normal route is either a slow, painful death or an instantaneous one... Essentially, every route leads to my demise.
Then I'll change my fate! And that's why I decided to become a man.
However, I made a mistake during a certain event, and the story began to head down an unexpected path...?

On our current society, most porn consumers are males, we are the ones who think with our d***** many times, we worship the female body and our society, products, advertisements and many other things are centered around that. But, what if it wasn't that way?
What if, instead of men being the ones controlled by their sexual urges, women were the ones who bought porn magazines and had the most interest in sex? What if the moral standards between men and women were reversed?

Based on a Hentai Doujinshi.

At the age of eight, I realised I had reincarnated as the nefarious last boss of an otome game, Queen Pride. Her fighting strength is high because she’s the last boss who will fight with the capture target, and her superior cunning wits make her the most powerful first princess in a matriarchal country. Since she brings misfortune to all that surrounds her, what awaits is a future of ruination! …really, wouldn’t it be better if I died?

In this case, I’ll avoid destruction from the capture target and freely use my authority and cheat abilities to save everyone!

Note: This manga is continuation of the canceled manga, be sure to read that one first (check the related tab)

A duke's daughter and the crown prince's fiancée... I, Rachel Sheringham, was both and wielded dark attribute magic, which allowed me to use necromancy. I was accused of colluding with demons due to it and was executed.

With regret as my source of power, I will return to life as a lich!!!

Alexander Purchinov is president for life of the country of Pursia, a country ruled by violence and the influence of its government. Alexander always desires to be dominant, and "ride" things, whether literally or figuratively. Now that he has already ridden his country, his next target is a fantasy world that has orcs, wyverns, and centaurs.

I was living a life of a NEET, and I was supposed to have died suddenly because of my daily indolence - but when I woke up, I had become a baby. It seems that I was reincarnated in another world where magic exists. I was born the son of a lord in a remote village, and began to lead a second life with my beautiful mother Kara, my big-breasted maid and nanny Ruina, and my beautiful sister Amelia, who is not related to me by blood. As a teenager, I've grown up and enjoy my daily life in a different world using my top-level magical ability and modern knowledge...?

I reincarnated as the villainess in a game world—
I’m not afraid of banishment, I’ll manage my territory and live as I like!

I reincarnated as Celistina, the villainess of an otome game.
As the fiancée of the crown prince, in this world where everyone is gifted with blessings by the gods and spirits, I’m the “young lady without a blessing”. As a result of being a fan of the game, I know that the crown prince will be with the heroine sooner or later, and he will break our engagement. Alternatively, if they don’t end up together, I will be executed…

While all of his classmate were transported to another world as heroes, for some reason he was left out as the dungeon master... and he, Satoshi Shinta, became the world's enemy. As the enemy of humankind, in order to survive and live a pleasant life in another world, he had a big choice to makeー. Through devilish methods, make his enemies fall, and strengthen his dungeon!!
To violate his enemies or kill them, the curtain raises on (male) Satoshi Shinta's devilish dungeon management!!

Ootori Tenma, who lost his parents and was raised by his grandfather’s and grandmother’s friends who are living in the countryside, loses his life at the age of 25. A god of a different world called out to the ghost Tenma. This is a story about Tenma who, is liked by multiple Gods of reincarnation, receives multiple cheats and lives a second life in another world.

I’d been stanning the hero for 3 years when I was suddenly caught red-handed by his tyrannical doting father, Duke Hades Louvremont.

“Ceaseless pursuit, expensive gifts, and now you’ve come alone all this way up north with no regard for your life…”
“I’m sorry. I have no excuse.”
“Alright, I’ve lost. Your devotion is undeniable.”
“...You think so too? Even I admit that this is the pinnacle of devotion.”
“Many women have pursued me, but none as persistently as you. I stand amazed. Let’s hold it, then. Our wedding. As soon as possible."
“Ha... Yes, I’ll accept my fate.”

Silence.

“Wait, pardon?! What?”

What did he just say?
Surely I must've misheard?
But the duke, smirking at my shocked face, gave the finishing blow.
“I said, I’ll marry you.”

Wow.
The hero’s dad has an inflated ego.

Taichi Arima is overworked at his day job. One day, going home late due to working overtime, he saves a fluffy white cat from being run over. He gains a special "Tame" ability and is transported to another world. With such a strange ability, what will he do... Why, open a Fluffy Cafe, of course!

As the Kingdom of Elpasa fell before the blade of the Empire's greatest hero, in order to survive, Princess Beatrice assumed the guise of 'Chloe', a slave. But then, she caught the eye of that very same hero...

Fujinomiya Soujirou is transported to a fantasy world with only his Daisho (pair of samurai swords) in hand. The katana can talk and swiftly informs him that it is Hotarumaru, the legendary national treasure of Japan thought lost during World War II. The wakizashi is to young to have a voice, to Souji names it Sakura. This is the story of Souji and Hotarumaru's journey through a new world as he seeks to achieve ... a sword harem?

There was once a man who was summoned to another world, and saved it. Of course, he became too popular there, and turned into an isekai-normie. However, that man fell into a “trap”, and was forcibly returned to his original world. Moreover, he had to start over as a baby! This is the story of the way-too-fantastic ex-hero who lived as a gloomy high-schooler as he gets summoned once again to that other world in a very unexpected development!

Yaki Hiroshi has been living a mundane life, when suddenly luck struck and some guy playing a mobile game bumped into him, causing him to fall down - right in front of a train! Train-kun didn't kill him, though. Instead, it sent him to a world where a beautiful girl needed him. To die, that is.

Event planner Yuka Sawatani‘s life ended as the result of overwork. Reborn into an Otome game with her memory intact, she becomes the villainess Elizabeth. She tries to resist her fate, but at the ending of the game, she is promptly banished.