From the moment he was born, Takeshi was born to be a leader. His first word upon birth was "leader", and his father, Hiroshi, was a "leader" among salarymen. After Hiroshi suddenly dies, Takeshi makes it his life goal to be a leader like his father, so he joins his new first grade class and hopes to become a true leader to his classmates.

This series received the 2001 Shogakukan Manga Award for children's manga.

Crossover between Sanji from One Piece and the Shokugeki no Soma series.

Gian Carlo Bourbon Del Monte, a young member of the mafia, is better known by his nickname "Lucky Dog" due to his incredibly good luck.

Despite knowing that he can escape with just a little effort, Gian decides to take a break from the fast-and-furious lifestyle while being held in a maximum-security prison. But when four young mafia captains are captured and brought to the same prison, the Boss of their syndicate makes a certain request of Gian...

In this world exists demon spirits, river deities, and cultivators who seek for eternal youth. Through their mystic eye, cultivators can sense these supernatural beings. They cultivate their flying swords to slay enemies from thousands of miles away. With abilities attained through refinement, the second young master of the Qin manor, "Qin Yun" is one of those cultivators.

Mu Soh Wol opened his eyes 20 years later to stop the cults aiming to dominate the midlands. “Who are you...…!” The question of his defeated foes. But they received an answer that filled them with despair… “Mu So Wol...that is my name!” The legend of the War God, forgotten in time, has begun once more.

She is the greatest and the last cultivator of the twenty-fourth century, however due to a certain mishap, she crossed into another world, into another body which has families oppressing her, a scumbag fiance abusing and steping over her…… Trying to take advantage of her now? Keke! Knocking on death’s door! Those who follow her will prosper, and those that oppose shall die! Behold as she pays back those who attempts to climb over her several folds!

Takaya was abandoned by his classmates in a another world. However, he is taught that his manufacturing skills are at a transcendental level and awakens! In addition, maids, priests, arch-demons, wizards, and even wolf girls gather around!?

Former black company employee, Jiro Tanaka leaves his job due to overwork. In his home, he founds a job recruitment template which is from another world company. The job is to test the dungeon created by the demon king. There, the days of diving into the dungeon as a "dungeon tester" were waiting for him to complete the dungeon that even the hero would not be able to clear. He has a hot dark elf boss who has an amazing ability "Magic resistance". The New life of our MC starts!

by: Socialweebs

Mika Kamiya is a young woman who is a "magic printer" - that is, she helps to create grimoirs and other mystic books which witches and wizards can use. However, she cannot use any magic herself. Desperate to find a spell which can send her back to her home world, Mika decides to create a COMpetely magIcal marKET, where magicians can trade and show off their creations.

From Dark Horse:

It's babes and badges! Miyuki and Natsumi are two stunningly beautiful policewomen who are, at heart, a couple of girls who just wanna have fun! When they're not getting themselves into wacky situations, they're busy enforcing the law. They're part Cagney and Lacey, part Thelma and Louise, and part Barbie and Skipper!

Gangnam lost his parents from a fire and has turned blind from the incident. He wasn't able to see anything but a hallucination called Kkamjang. Is Kkamjang actually a hallucination or something more? 'Your scars, your two eyes, and... even your strength! I'll change everything for you.'

The world is being invaded by beings from another dimension called Antinoids, that have many hidden abilities, a Hero of Justice, Rapid Rabbit, has risen up to protect it! Well, that was the case, until he lost the battle to the Antinoid General named "Honey Trap", and, as the general unmasks this gallant hero, she discovers "he" is actually a girl, and immediately falls in love, being unable to kill her! The general then gets fired from his organization, and, once more, finding herself next to the hero, their relationship and fight against whoever comes their way begins!

On a school trip to shinobi-themed Ninjatown, a young man named Ichi Kuno accidentally springs a mystical ninja trap which sends him back to the Age of the Ninja. Having no other path, he must pose as a girl and infiltrate Kurenai Academy, a school of kunoichi students, to retrieve a mystical scroll that can return him to the future. But when everyone around him is already far better at stealth and infiltration than he could ever imagine being, it's not going to be easy. He'll need to employ his own special bag of tricks, and have a lot of luck, if he's going to last more than 5 minutes surrounded by hot kunoichi girls, every one of whom would happily kill him in a moment if he's discovered.

Adaptation [LN]: Sword Art Online Progressive vol.3
Continuation of Sword Art Online: Progressive manga adaptation after Himura Kiseki left the project.

The misadventures of Son Goku, Krillin, and other friends from the original story. Supervised by Akira Toriyama.

Jung-woo is stuck in a reincarnation cycle along with his nemesis, Shin-Ryong. Ever since he was little, he had a dream.
He wanted to become strong enough to conquer Murim.

However, things did not always go the way he planned. Shin-Ryong defeated him on every occasion.
At this point, Ha Jung-woo had been reincarnated 5 times and was defeated yet again.

When he is reincarnated for the sixth time, he is born into the modern world.
Being born into a new world changes Jung-woo's goal, as Murim is gone.
Yet he continues training in order to defeat Shin-Ryong.

Ultimately, he prioritizes the goal of becoming stronger to defeat Shin-Ryong, while trying to adapt to this modern world where he has a family and goes to a school like a normal person.

A fabled genius at killing resides somewhere hidden in Osaka. Taught since childhood to obey the orders of his boss, he is ordered to live in Osaka as a normal person for one year in order for the boss to lay low.

The son, tired of his overprotective mother that has a son complex with a huge imagination for misunderstandings for him and will protect him from all.
Tries to go on an adventure but his mother tags along whether he wants it or not.
NOTE: The mother is the strongest person in the country (OP level)

In a world where humanity escaped underground to survive, En is an impoverished boy who lives off the trash of those more privileged than him. He spends his days in the slums, looking through a trash heap for the decomposing bodies of "losers," those who were defeated and killed in the "Battle of the Six Realms." To participate combatants have to undergo an expensive "body modification surgery," and En sells these modifications, machines attached to their bodies that significantly increase fighting ability. Uninterested in the tournament and its champion, unlike everyone else, he aims only for a worry-free life. But one day, a chance encounter with a mysterious man shatters his reality and puts him on a different, more gruesome path.

[From Viz]:
Being a teenage martial artist isn't easy, especially for Ranma Saotome, who went through a major transformation on a training mission with his father. After an accidental dunk into a legendary cursed spring in China, Ranma now changes into a girl every time he's splashed with cold water. That would be enough to complicate anyone's life, even without the arranged fiancée who doesn't like him (or says she doesn't) and the constant stream of rivals and suitors for both his male and female forms. What's a half-guy, half-girl to do?