Seinen

Monster (stylized as 🢒M⊙NS†ER🢐) is a Japanese manga series written and illustrated by Naoki Urasawa. It was published by Shogakukan in their Big Comic Original magazine between 1994 and 2001, with the chapters collected in eighteen tankōbon volumes. The story revolves around Kenzo Tenma, a Japanese surgeon living in Düsseldorf, Germany whose life enters turmoil after getting himself involved with Johan Liebert, one of his former patients, who is revealed to be a dangerous serial killer.

A gate appears in Tokyo’s Ginza district sometime in the 21st century. From the gate pours out monsters, knights from middle-age Europe, and other fantasy-like beings, and they kill many of the citizens of Tokyo. This event is known as the Ginza Incident.
The government sends a small group of soldiers from the Japanese Self-Defense Forces to the alternate world beyond the gate. Led by otaku soldier Yoji, they find that the villages in the world are being attacked by a dragon. An elf girl who is a survivor from the dragon’s rampage joins the group in their travels across the dangerous new world.

Tomokui Kanata has been re-incarnated in the weakest goblin, named Rou, after having undergone an unfortunate death. However goblin Rou has retained his previous life’s memories, an unusual evolution, as well as becoming strong enough to gain status boosts from eating.
In this alternate world of survival of the fittest, events unfold with competent subordinates and comrades, delightful case of the tail-wagging dog – long-awaited survival fantasy by Komikaraizu !

Naofumi Iwatani, an uncharismatic Otaku who spends his days on games and manga, suddenly finds himself summoned to a parallel universe where he is one of four legendary heroes tasked with saving a fantasy world from its prophesied destruction.
But all is not as it seems as Naofumi is quickly betrayed and framed for a crime he did not commit. With an entire kingdom against him and nowhere to run, Naofumi must rise to become the legendary Shield Hero and save the world!

Monsters? They’re real, and they want to date us! Three years ago, the world learned that harpies, centaurs, catgirls, and all manners of fabulous creatures are not merely fiction; they are flesh and blood?not to mention scale, feather, horn, and fang. Thanks to the “Cultural Exchange Between Species Act,“ these once-mythical creatures have assimilated into society, or at least, they’re trying.
When a hapless human teenager named Kurusu Kimihito is inducted as a “volunteer“ into the government exchange program, his world is turned upside down. A snake-like lamia named Miia comes to live with him, and it is Kurusu’s job to take care of her and make sure she integrates into his everyday life. Unfortunately for Kurusu, Miia is undeniably sexy, and the law against interspecies breeding is very strict. Even worse, when a ravishing centaur girl and a flirtatious harpy move in, what’s a full-blooded teenage human with raging hormones to do?

A 34-years-old NEET otaku is chased out from his house by his family. Unattractive and penniless, he finds that he has reached a dead end in life and realizes that his life actually could have been much better if he had made better choices in the past.
Just when he was at the point of regret, he saw a truck moving at a fast speed straight towards three high schoolers in its path. Mustering all the strength he had, he tried to save them and ended up getting run over by the truck, quickly ending his life.
The next time he opened his eyes, he was already reincarnated into a world of sword and magic as Rudeus Greyrat. Born to a new world, a new life, Rudeus decided that, “This time, I’ll really live my life to the fullest with no regret!“ Thus, starts the journey of a man yearning to restart his life.

Healing magicians cannot fight alone.’ Keare, who was bound by this common knowledge, was exploited again and again by others.
But one day, he noticed what lay beyond healing magic, and was convinced that a healing magician was the strongest class. However, by the time he realized that potential, he was deprived of everything. Thus, he used healing magic on the world itself to go back four years, deciding to redo everything.
This is a heroic tale of one healing magician who became the strongest by using knowledge from his past life and healing magic.

Bell Cranel is just trying to find his way in the world. Of course, in his case, the “world” is an enormous dungeon filled with monsters below a city run by gods and goddesses with way too much time on their hands. He’s got big dreams but not much more when a roll on the random encounter die brings him face-to-face with the girl of his dreams—but what’s an amateur adventurer got to offer a brilliant swordswoman? And what if the lonely goddess who sponsors his solo adventuring gets jealous?

The story begins with a beautiful girl, her perfectly fake smile, and the people who love her selfishly for it.
What transpires behind the scenes of the glittering showbiz industry? How far would you go for the sake of your beloved idol? What would you do if you found out reincarnation was real? The star of the show is Aquamarine Hoshino and the stage is but a mere facade. Will he manage to reach the climax before the world of glamour swallows him whole?

It is the near future. After a young man woke up from a deep sleep for his sclerosis, the world completely changed.

One day at school, Youta sees someone strange entering school. Out of nowhere this being appears next to him and makes him fall from the 3rd floor! But he stops in a strange world, where beings like dragons exist! Youta meets a young paladine, and discovers that he is the only man inhabiting that planet, and that its inhabitants are extremely “weak“ to his presence… would this be a paradise?