Today, there’ll be discoveries and encounters again. For the girls marching forward in a world in its afterlife, there are still various things to experience: The remains of an extinct civilization, other living things, as well as lessons taught by the ruins.. there is still a lot to be seen in the world. That’s why... living is still fun!

Summoned by a beautiful woman to a different world, Yamai Zenjirou is asked to marry her and make a child with her. Will he throw his life on earth away for a sponger life with a beautiful woman?

They haven't done anything yet - A story about a serious, simple, unadorned young man who wears nothing but the purest of clothes, never dreaming that he would fall in love . Until he meets a fragile girl working at a bento shop one day. This is a story about how a man and a woman who have never been in a romantic relationship before , start their newlywed life.

From MangaHelpers:
A young noblewoman once dreamed of becoming a magic user like in the old tales, but her time in magic school has dimmed her passion. One day, a mysterious man comes to her rescue in the forest, using magic like in the old stories. Despite the fact that he is clearly skilled in magic, he is thrilled by the idea of learning new techniques. Since the only way to do that in this day and age is in magic school, he alters his appearance to school-age and decides to accompany her back to school.

A cute fluffy romance about a cool female worker and an ice-cold colleague.

Sacheondanga was a famous family of poison and memorization, but has now fallen.
Yeon Myeong, who was born there, suddenly became crazy about the sword.
I awaken to my past life where I reached the state of swordsmanship.

'I want to live a normal life this time.'

If I wanted to live a normal life, I would have to hide my swordsmanship skills.
But there are too many things that get in the way.

From Tokyopop:

When the school's two biggest troublemakers get into a tussle, there's nothing left for them to do but fall in love! In Love Attack, you'll find a rollicking brawl of a good time as the roughest guy and girl in school get themselves into trouble--and find themselves in love.

Chiemi Yusa's high-school record is far from perfect. She's already been suspended twice for fighting, and she's not even half-way through her first year! In danger of getting expelled for starting yet another brawl, her teacher approaches her with an unexpected offer: get her classmate Akifumi 'Deranged Devil' Hirata, the nastiest fighter in the whole school, to clean up his act, and her record will officially be cleared. Reluctantly she accepts, and immediately goes on the attack. But as she's waiting for him to retaliate, she discovers that he has more in store for her than just a fight! From the creator of Girl Got Game and Heaven!! comes a rollicking brawl of a good time as the roughest guy and girl in school get themselves into trouble--and find themselves in love.

From the author:

Spoiler (mouse over to view) This is the story of how Hirata-san (whom Kyou met when she ran away in Vol.9 Ch. 32 of "Power!!") met his wife. It was supposed to end after one chapter, but somehow it was decided that it would be continued.

I, an ordinary high school student, Kimizuka Kimihiko, who easily gets involved in things, was appointed to take care of mysterious attache cases by mysterious men in black suits. After meeting a beautiful angel-like detective girl, named Siesta in a hijacked plane, I became her assistant.

And from there–
[You deal with the beehive, and I’ll restrain the enemy.]
[Don’t make plans that make me the victim.]

We had those kinds of foolish conversations, all while being completely broke every day and fought against <The enemies of the world>. Even when there were hurricanes, the weather-beaten duo sleep past it. Sometimes when we saved money at a casino, we would jump around on the beds at a resort hotel, only to be broke again the next day. We would walk through deserts, traverse through jungles, conquer mountains, cross oceans– The great detective and her assistant would go through these dazzling adventures–

Until she died.

And this story starts from 1 year after that incident.
I’m the only one who’s left, but I carry on her remained wishes.
This story is far from over..

Kimihiko Kimizuka, a young man who four years ago became the assistant of a mysterious detective known as "Siesta" on a hijacked airplane. Together, Kimihiko and Siesta went on mind-boggling, globe-trotting adventures while combatting a secret organization, but all of that came to an end when they were separated by Siesta's death. In the present day, Kimihiko tries to return to an ordinary, boring life as a high school student, but things are never that simple, even though the detective is already dead.

Kaguhara Ririka is a plain, friendless and often overlooked first year girl at Fuetchi Senior High. However, she has one hobby in particular that she can never tell a soul about; that being her dedication to her fetish and recording her observations of how it manifests itself in all sorts of unique ways amongst her classmates.

Lerew lives in a small fishing village on the coast, and trades with a young boy called a witch for medicine for his father. But one day, while attempting to fish in a dangerous area, Lerew is thrown overboard and attacked by sharks. However, even with his body mangled beyond recognition, he still doesn't wish to die…

Very ordinary company OL (Office Lady), Azusa Aizawa, died from overwork.

For that reason, I decided to live a slow life in a house in the mountains as an immortal witch with the figure of a 17 year old.

The main source of income is to defeat slimes inhabiting the area to acquire magic stones. I sold these at the Guild in the village. Besides that, I made medicinal herbs, became known as “The Witch of the Highlands”, and lived with respect and trust.

However, as a result of continuing to beat slimes for 300 years, the experience values accumulated too much, and I unknowingly became level 99, the world’s strongest witch .

The level 99 witch now works together in the village with her dragon-girl apprentice in moderation, while helping everyone in the village.

Tsuji Motochika is a guy who loves little girls. Yuna looks like a little girl, but she's actually older than Tsuji. Also, she likes much older men.

Together, they make an agreement to show each other's greatest desires - Tsuji's father and Yuna's little sister - and in the process, learn that age is only a number.

"You're a genius." Those words he heard as a child were poison.
Encrid dreamed of becoming a knight, but he soon realized it was futile.
"You want to live by the sword with that level of skill?" Some laughed at him.
"Just give up." Some advised him against it.
Despite that, his dream remained steadfast. He slept less, ran more, and trained harder.
One day, he died, having been stabbed in the neck. Encrid opened his eyes again to "today's" morning.

I was a rabbit shapeshifter who couldn’t even transform into a human even after my coming of age ceremony. My family said that I was just a halfling and placed me in a basket…
“You’re crying? Go on, cry more.”
Then I was then picked up by a black panther with an awful personality.
“You’re lacking in fighting spirit. I’ll eat you the day after tomorrow, so keep trying.”
This fierce beast.
Staring at my trembling face, the black panther’s eyes glistened.
“How thrilling.”
Mom, he’s crazy!
To survive a fairly crazy black panther.
“The wild beasts are possessive, no matter what it is.”
….Is it possible?

A high school student planning to live alone decides to rent a "stigmatized property" where the ghost of a female knight appears!

The student council president, Takamine-san, is at the topmost of the school hierarchy, a god!
One day, Shirota-kun accidentally saw Takamine-san’s naked breasts.
From then, his school life changed. ― “Put my panties on for me”
Shirota-kun has ended up in predicament of Takamin-san’s pink colored favors.

The virtuous will definitely be rewarded!

This world judges the deeds and good karma of your previous life, and grants you a rank when you are reborn. The benevolent man, even surprising the gods through this, decides to be reborn as the son Alexander of a noble family, and thus starts his SSS-Rank life! Follow Alec's journey as he lives his life as a SSS Rank!!

The main character is reborn as a character of a game he played in his previous life. This character falls into ruin along with the villainess, spending the last of their years together, a man named Kururi Helan.
No details of this are written inside the game, it can’t be understood why this sub-character ended up with the villainess. However, that is of no importance.

Living as a needy farmer along with someone is unpleasant, so the main character seeks a profession. For now, he aims for becoming a blacksmith as he originally had skill in it.

One day, Yamato Satsuki saw the jagged teeth behind Aisu Kiraragi's mask. As he approached her, those teeth marked the beginning of a sharp and prickly romantic comedy.