From Go Manga:

A youthful romance for those who think they are unhappy.

Gong Yoo-Il is an aspiring writer on the hunt for a job and a die-hard fan of the idol, Ryu-Min. Tak Moo-Yi is a top actor with legions of fans. Add a mysterious stalker, and chaos ensues. This is the story of a one-of-a-kind romance!

From Game of Scanlation:
Trainee Knight Trudia gets kicked out of the knight squad because of her hot headedness. In midst of trying to find out where she'll go next she finds an old man that's in danger. She runs over there without hesitation in order to save him only to meet a man that'll change her fate forever. A story of a dying girl and an undying man trying their hardest to live.

Ahn was a mature and attractive older woman I met through my company's task force. Wise and caring, that's how I became captivated with her... However, she was also a woman with a child.

Official Chinese Translation: https://www.dongmanmanhua.cn/METROPOLIS/nianshangjiejiedeyouhuo/list?title_no=1562

Before a child is born, somewhere in the world, they will have a dream. Do you have a dream? In this world, everything is precious. A child is left in a marchen fantasy.

The world's strongest white dragon... becomes the tyrant's wife?

Betrayed by her only friend, she is given a new lease on life reborn as the daughter of the knight who killed her. How will she take her revenge on those who have wronged her?

From NOIR:
Yuri is a doll-like child, orphaned at a young age when her mother dies in a car accident. In her will, she requests that Yuri be placed under the guardianship of a close friend of hers, Kim Dowook. Taken in, Yuri begins a new life, different from her life before. Where will this take her, and what does she think of her guardian..?

Through a chance opportunity, Ian joins the supernatural intelligence agency N.E.R.D! His company life of suffering through the ins and outs with those in N.E.R.D begins!

From Tokyopop:
Rey Yan was an orphan with no home, no skills, and no purpose. But when he comes upon the PaSa sword, a cursed blade made from the bones of the demon king, he suddenly finds himself with the power to be a great hero. The sword's creator is the evil Shiyan, the royal vizier who needs the sword to assist him in releasing his ancestor, the demon king.

At the age of 78, Midran, an archmage is still searching for a way to reach 8th circle. Then he is suddenly turned into a child. Will he be able to recover mana from his past life and become the Archmage of the 9th circle? This is the story of the archmage's struggle in the Murim...

Original Webtoon (kakao): https://page.kakao.com/home/49019418
Original Webtoon (Naver): https://series.naver.com/comic/detail.nhn?productNo=2472424
Original Webtoon (MooToon): https://www.mootoon.co.kr/comic/moo_list.mg?tcode=eyd8
Original Webtoon (Mr. Blue): https://www.mrblue.com/webtoon/wt_wizard_wz
Original Webtoon (Lezhin): https://www.lezhin.com/ko/comic/magicians_adventure

From Lezhin:
Thinking she's all by herself on the last train home, Nayeon feels the urge to enjoy herself by fantasizing about her desires. However, a reflection from the train windows show that a mystery man is on the same train. He comes up to her and offers his business card. At the thought of seeing this handsome stranger once more, she takes his offer and arrives at a place called Peach Puff. What is this place? What are these people doing?

Ercella lived a glorious life everyone envied, but died of an illness at a young age.

Before her death, she regretted not having become a proper mother to her son.

But somehow, she went back three years ago.

Ercella is living her second life.

I promise to be a loving mother this time.

However, is it too late?

“Now that you’re doing this, you’re just making me feel uncomfortable.”

The son only pushes her away and she realises that her relationship with the husband, who she thought was fine before her regression, wasn't actually...

From Udon Entertainment:

The Grim Peddler waltzes through fairy tales, giving the stories' inhabitants their hearts' desires. But benefactors beware, for his gifts don't always turn out quite as expected! Classic fables like Sleeping Beauty, Hansel and Gretel, The Frog Prince and more are turned on their side through the unexpected reversals and terrifying twists of this all-new series.

A righteous prosecutor, life reset, punish the villain!!!!
A hot-blooded prosecutor, kim hi wu, was murdered and sunk into the ocean while chasing the tyrant who controlled korea. But, Kim Hi Wu, meets a grim reaper who gives him a chance to relive and sends him back to when he was 18 years old. As a high schooler, kim hi wu, prepares to punish the tyrant Jo Tae Sup.
“To get the devil, you have to become one”

After a genetic mutation, mosquitoes have become the strongest predator on the planet. Will mankind be able to fight back?

After spending most of her youth fielding the attention of countless wealthy suitors, Suhee Kim finally finds true love with a steady boyfriend named Jinsu Han. But then tragedy strikes, and Suhee is murdered in cold blood.

To Suhee's surprise, she is immediately reincarnated as a baby girl named Sanghee Kim, who just so happens to be a princess! Plus, she is fully conscious of her past life. There's just one problem: in this society, women are seen as totally inferior, even princesses. Appalled by the treatment of women, Sanghee is determined to change the kingdom's patriarchal ways. Will Sanghee be able to succeed, or will she be stuck living her second life being treated as a lowly woman?

This is a world whose peace was destroyed by the Shadow Lord, ‘Secneum’. ‘Niro’ is a half-elf, half-human boy who lost his parents as a baby and was adopted by a slave couple. In this world, slaves are not treated as humans. Since Niro’s adoptive parents are slaves, they are mistreated and eventually lose their lives. Now Niro is alone once more, and must shoulder the burdens of his family and do whatever is takes to protect his two younger siblings. If Niro wants to escape this fate, there is only one thing he can do. He must graduate from the academy, ‘Excanum’ just like the current Emperor, ‘Muren’ who was once a slave!

I am Beelzebub, the King of the Devils that stands tall over all others. But after being betrayed by my subordinate and killed, I was reincarnated. I was definitely supposed to be born again as a devil…! But I can’t even spea… ababubaba…! The almighty Beelzebub is now a human child?!

Yang Jaesin always dreams the same dream of a woman telling him she'll be waiting. One day, he meets a mysterious fortune teller who tells him he cannot avoid destiny and leaves him with some advice: For the path he walks, Jaesin must keep with him "the eyes that can see the isolated truth."

The first lieutenant of the Space Alliance Defence Force, Suna Kim, travels dimensionally to a fantasy world called Rofan! An extreme survival story plays out after she dies and reincarnates as the daughter of Duke Langtry, who was cursed and killed. The frugal lady travels in search of her spaceship, which crash landed in the unfamiliar and barren fantasy world. A lively and brutal romance in court!