It has been decades since labyrinths first appeared in the modern world of Japan, bringing with them monsters and related catastrophes. With this brought many changes; the biggest one being a new profession called 'Adventurer' and the monster cards they use to summon their own monsters to fight and conquer labyrinths with.

Kitagawa Utamaro, nickname Maro, is a mob highschooler who becomes an adventurer due to being incited by a former friend of his having sudden social success among their peers simply by becoming an adventurer himself.
However, things aren't quite as easy for Maro. Just becoming an adventurer in name only isn't enough for him to gain his spotlight, giving him no recourse but to actually tackle labyrinths with the peculiar and not very versatile monster cards that he barely manages to scrape up.

Alban realized he had been reincarnated as the villainous noble in a certain novel. Just as he began training in swordsmanship and magic to avoid defeat by the protagonist, he learned that Leticia, a noblewoman surrounded by nasty rumors, was to become his wife! He was nervous about what kind of "evil woman" she might be... but, upon meeting her, he found an incredibly pure girl — angelic, and exactly his type! Alban, forgetting all about avoiding his doom due to her adorableness, resolved to take revenge on the mastermind who had set up his beloved wife! Using their villainous reputation to their advantage, they set out to lure the culprit, but... will they succeed?

Shinobu Iijima lost his life along with his beloved sister and prickly stepfather in a mysterious disaster.
When he woke up, he was reborn in the world of the game he had been playing.
Shinobu was in despair as his stepfather erased his game data and he had to start from the tutorial, but he learned that his sister would soon be reincarnated into this world as well.
In order to stop his father-in-law, a top player who was after his sister's body, he embarks on a painful path to become the strongest...!

The strongest swordsman of the Warring States period, transferred to another world.

At the end of the Warring States Period, Ginko, the greatest swordsman of the time, was always hungry for a fight to the death with someone stronger than herself. After cutting and cutting and cutting, she finally despairs that there is no one stronger than her in this world, and then she is transferred to another world! Before her eyes - a dragon!

From the author of the NTR series "1/10 no Hanayome". Read it with that in mind

Haruyoshi, the strongest onmyoji was on the verge of death after the betrayal of his companions. Hoping to be happy in the next life, he tried the secret technique of reincarnation and was sent to a different world! Born into a family of magicians, the magic he failed to inherit was nothing compared to his previous skills as an onmyoji. “Who needs magic? I’ll survive in this world with my old techniques!”

From Intercross
Waka is a 13-year-old Go lover! Learning from her grandfather, a pro Go player, she comes to enjoy connecting with the people around her, regardless of age or gender. One day, she meets the young genius go player, Sagisaka Souji, in a match that tore at both body and soul, and so she decides to become a pro go player herself!

From elves, fairies, slimes, gift items, devils and more, countless and thousands of reincarnations have led to a new life. I, Lee Seo Jun, have been reborn as a human child!

In the library of my life, where memories of my previous lives remain like fairy tales, I happen to see a past life with the dream life I desperately wanted. On top of that, I’ve been given abilities that grabs people’s attention!

With my hansome face doing all the hard work! My insane acting skills! This time, at long last, I will achieve my dream and become a superstar!

Wet’s dow it! (Baby Accent)

I‘ve made up my mind. If I can't be an empress here, I'll be an empress somewhere else. The popular web novel Remarried Empress has been adapted to webtoon!

"...I hate you!"
"What a coincidence. So do I."

The two once belonged to opposing organisations of supernatural power users, and fought for their own opposing goals. Roushi Saikawa, also known as the "Feather Hunter," and Ritsuka Yanagi, the strongest supernatural power user known as the "White Demon." The two spent their days battling each other and had no normal social experience, but...

"I love you, Rou-kun."
"Me too, Ritsuka."

After their organisation was disbanded, they somehow started dating and then got married! Is their hatred 100 times more adorable? Now, they are the epitome of a lovey-dovey couple, kissing each other at the door every morning when they go to work. But the husband had just one problem. That is, he had never shared a bed with his wife... In other words, even though he was married, he was still a virgin! This is the story of the hardships faced by such a husband, who gets caught up in numerous troubles but continues to make desperate attempts to deepen his love with his strict wife.

A space series about a protagonist who continually fights against all the aliens who are trying to take his life.

From Friendship Scans

Ranze Etou is an adorable immortal girl with a vampire father and a werewolf mother who would throw things at each other when they get into childish fights. However, Ranze just wants to live like a normal girl and lead a normal life. Unfortunately, she is "blessed" with the power to turn into anything she bites. For example, if she accidentally bites a cake the wrong way, then she will turn into a cake. The only way to return to normal is to sneeze! Ranze is in love with Shun Makabe, who is a handsome human boy at school. However, a human girl (without much hair) named Youko also likes Shun, and she would do anything to reveal that Ranze is not a human!! Things got even more complicated when Ranze met Aaron, who is the prince of the Spirit World. Aaron fell in love with Ranze and first sight, and he would do whatever it takes to win her away from Shun... Tokimeki Tonight was one of the hottest mangas in Japan, and you sure don't want to miss this hilarious comedy!

Ichinose Shiki, an inheritor of the blood of Oni had lived out his entire childhood oblivious to this fact. However, when an unknown man comes rushing into his home in attempts to assassinate him, his foster father finally reveals the truth. In a world where Oni and Momotarou have never been able to coexist, join Ichinose in his struggle for power and unifying the two races!

A spin-off of the series The Angel Next Door Spoils Me Rotten which comicalizes the stories from Volume 5.5 of the Light Novel and its special edition booklet, which contains additional short stories.

The Osoguruma and Shinma clans are ninja organizations living in the modern age. They were called "super ninja," or "super shinobi." However, these two clans have been fighting a fierce battle to exterminate each other. Why?

The unique tag team of Tetsu Kariya and Kazuhiko Shimamoto unleash a painful work!

Yukari Maki, a diligent high school girl. One day, she spots her classmate, Yusuke Kusaka, who was rumored to be a delinquent, singing a love song. Never having imagined such a sweet, yet sad, singing voice could come from him, Yukari was instantly captivated—without knowing that it would soon be the beginning of a sad, unrequited love.

The student Nakatani Yuto was supposed to be having a regular life, however his whole class was transferred to another world. All the students gained powerful skills and were worshipped as heroes, but for Yuto who got the unfavorable skill [Absorption]...! ?

Vlad, Luke, and Tauryu work in Café Forbidden, a mysterious coffee shop that only opens at night.
The three men look pretty normal, but they hide a secret they cannot share with anyone: every evening, they rush around London to uncover the mysterious incidents that take place in the city.

These are the recollections of a group of men who bet everything on their bicycles. The central pillars of their respective teams, the 3rd years. New stories revealing their pasts is about to begin!!

Kitase Kazuhiro is an ordinary salaryman who always leaves the office on time. Though this is Japan, so perhaps he's not really ordinary after all. What's truly strange comes after that; Every night, he takes a shower, changes into his pyjamas and has a good night's sleep. Then he dreams of a fantasy world, and only wakes up when he dies or sleeps in that world. One day, he's killed after stumbling onto a dragon's lair. "A nightmare", he sulks, until he finds his elf friend in his bed.

Curious to see an elf waifu experience daily life in Japan? How's it like to walk with every man's fantasy on the streets of Tokyo? This manga is for all you elf lovers out there!