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).

Konoe Yuuto was summoned to a different world where slave trading is legal. There, using his "Skill Taker" cheat ability, he steals the abilities of monsters he defeats, and starts building a slave harem while hoping to live a carefree life after retirement.

A gun otaku dies after toying with a homemade pistol that explodes in his face. In the afterlife, he is told that he will be reincarnated into another world. When the otaku wakes up, he finds that he is no longer human - he’s now just some little furry thing. Near death, he comes across a beautiful warrior, who decides to take care of him because he’s fluffy. However, things take a turn when he finds out that firearms exist in this world?

From the writer of Time Stop Brave and Princess Resurrection comes a new isekai story, which has bears, boobs, and bullets.

A man who has been reincarnated in a different world acquires the vocation of "pole master" in the new world! However, that special ability is not used to defeat enemies, nor to gain power, but to embrace the beautiful girls who appear one after another with all one's might! A unique story of conquering another world begins here!

The protagonist, “Sao” has been reborn with his memories from his past life. He’s born as a son of a rural villager, but his true identity is a reincarnated person with cheat abilities and the knowledge of the modern world. With the class “Rod Master,” he received as he grows up, and the many skills that came up with it, he can defeat enemies, help people, and even for sex.

Time after time I see my boyfriend Haru Toen, I, Yuki Shirasaka, get anxious about these wicked thoughts brought forth within me. Being enticed with "how best to train your pet" and with discussions with my experienced friend Chiaki, I awaken to a blooming sadistic desire within... Affection and sadism, and pleasures by far--

The revered Swordmaster Hoss sets out to defeat the formidable Shell Dragon! But when people find his cold dead body amidst the remains of a fierce battle, they make a shocking new discovery. Now, with monster hunters discovering new ways to utilize their spoils for more private (?) pleasures, a bizarre sexual hype sweeps through the lands - and Cheong, as innocent as she is, must make her way through this mess. Join Cheong as she embarks on her raunchy new adventure!

Yorozuyama Goro, a hero known as the monster of the Heisei era, has appeared after winning five consecutive tournaments from the makushita stage!! A man with extraordinary strength who will never become a yokozuna or an ozeki...
What is his true intention?…!?

The manga continues with the story of Alicia from "A Female Warrior Who Fell to the Goblin Kingdom"...

Tomoya Sadoshima died after a serious accident after returning to a convenience store. Then,
after regaining consciousness in a pure white world, a woman of divine beauty emerged, she introduces herself as "The Goddess of Creation." The goddess of creation prepared a remedy for her suffering, she offers him to reincarnate a different world than his own. But it was a world in a war situation with the demon king. Begins; a story of Tomoya and his adventure to defeat the demon king and get the harem he so desires

Do what we want, when we want, with the person we want. Such a relationship needs no label.

Murata and Tomoka, who are tired of their past relationships, become friends after sharing a game online and decide to go directly to a love hotel. After this evening, they meet regularly and have a good time together.

The protagonist along with his step-mother, and 2 step-sisters are summoned into another world where demi-humans are the rulers as saviors, but its not to fight against a demon lord, its to fight an Undead Apocalypse monsters called "Dead Mell" that have overrun the world and that can only be killed by using weapons made with holy silver.

For that, a familia is made (group of 4 people) with them being the swordmaster that uses the holy sword, the guardian that uses the power of earth to protect, the healer that use the power of water to heal and the black mage that uses the power of fire to destroy.
The role of the guardian, the mage and the healer is to support the swordmaster that can only kill the monsters.

But to use magic powers one must offer part of your being as a sacrifice to form a contract with spirits, and the higher the sacrifice, the higher the power. Now they must choose who are the 3 that need to sacrifice part of their bodies to gain power and who will wield the holy sword.

He lost his new home and all his property, but found a cute girl!

Harold, a poor laborer who saved for years, finally obtained the house of his dreams, only to lose it to a fire the very same day. Feeling like nothing mattered anymore, Harold finds himself at an auction, where he ends up spending all of his savings on a slave, Atie...

Harold, with his secret technique, and Atie, with her skills as an adventurer, begin their freewheeling journey now!

Webnovel link: https://ncode.syosetu.com/n0884fk/

More than ten years have passed since dungeons suddenly appeared on Earth. In a world where people with excellent skills play an active role as adventurers, the skill that high school student Takeshi Miyamoto has discovered is... "breast correction"!?

Takeshi is confused by the unique skill he has never seen or heard of. But there seems to be a surprising number of girls who need it.

Ponta anxiously awaits the first big event in his high school life that will give him the opportunity to lose his virginity. A trip to the beach with his friends Taro and Jiro, in the company of three girls, Emi, Rumi, and Chisa. Coupling is done by janken and Ponta ends up with Chisa, the girl of his preference. His plans fail miserably though, when it turns out that Chisa is not so willing as he thought she would be. So, at the end of the trip, unlike his friends who tease him about this failure, he still remains a virgin. To his friends' surprise though, Chisa turns around and asks him to keep in touch.
Thus begins the romance between the two. Their friendship evolves into love, and like in any relationship, there are a few hurdles to overcome. For starters, Chisa is still very innocent and has good reasons not to hurry their physical relationship as much as Ponta would want to. Ponta, who has hopelessly fallen for her, decides to endure this and help Chisa uncover her womanhood.

20 years ago, Weve Aliens arrived at Earth to search for marriage partners. Weve are perverted and love interbreeding. With their advanced technology, they have solved all the Earth's problems to do with the environment, food, and resources.

Gen is a student at the prestigious Human-Weve school Shinryou Academy. Due to his late grandfather's words, he loathes Weve and believes that pure humans will eventually die out if something isn't done about Weves soon. However, Gen meets the Weve girl Mirika, who falls in love with him.

This is a story of 6 school friends, adults now, who during their school-days were persistently bullying one of their classmates. Suddenly though their quiet lives will be shaken violently when things they wanted to keep secret are coming out to haunt them! Is this the revenge of the bullied classmate and how far will he go?

Zarmen, an adventurer who can't level up decides to retire from the adventurer business. Furthermore, in order to graduate from virginity, he decided to splurge on all the assets that I had diligently saved up since his reincarnation at a high-class brothel. The woman who appeared in front of him was the finest woman he would ever have known. Thanks to her hospitality, Zarmen fully enjoys his first time, but at that moment, his ears hear a mysterious announcement, "Impregnation confirmed.", "Level up!" "Does this mean that the more "seeding" you do, the stronger you get?"An extraordinary implantable foreign world adventure fantasy created by a bottom adventurer who has been at level 1 for many years levels up through sex!

An office worker, Yuuto Aida, witnesses his wife's affair at home! When he jumps out of the house, he gets hit by a truck and is reincarnated in another world as a hero!! However, due to the misunderstanding about Goddess Reincarnation, he only had one skill, it was a skill that could captivate other people's wives!!

(MTL)

After killing the Demon Lord, Blum Dilmond was pursued by the kingdom and forced to leave the country. While spending days trying to avoid the assassins aiming at his neck, he suddenly came up with an idea. He could hide inside the dungeon that was once the Demon Lord’s hideout. If it’s there, then he could be safe.

Without hesitating Blum went into the dungeon, but then he met someone unexpected in the lower levels, one of his former companions with whom he fought side by side against the Demon Lord. Moreover, a maid, called Irene, who once served the Demon Lord is also there. And so since their interests happened to match, the three of them decided to cooperate together to rebuild the worn-out dungeon, working earnestly in order to turn it into their own safe paradise.
Links:
Author's Twitter
Japanese Light Novel ( on Amazon.co.jp )

Aldred, the leader of a kingdom’s A-ranked party,『Black Silver』, has accomplished the task of slaying a dragon. However, he who has pursued strength his whole life has lost sight of his goal from taking down a monster of the strongest species. As he worried about what to do next in his life, it was the scenery of Nordende that popped up in his mind; A rural village by the countryside, full of natural beauty, which he only visited once during a quest in the past.
After declaring the disbandment of his party, he heads towards Nordende for a comfortable, relaxing life.