The enormous cave system, known as the Abyss, is the only unexplored place in the world. Nobody knows how deep down goes this titanic pit, inhabited by strange and wondrous creatures and full of mysterious ancient relics which purpose in unknown to modern man. Generations of bold adventurers have been drawn by the cryptic depths of the Abyss. In course of time those bold enough to explore the dangerous pit came to be known as "Cave Raiders." In Oosu, the town at the edge of the Abyss, there lives a little orphan named Rico, who dreams of becoming as great a cave raider as her mother was and solving the great mystery of the pit. One day exploring the murky depths she stumbles upon a little boy, who turns out to be a robot...

A chance encounter with a stranger introduces Ko to a nocturnal life. Ko follows her and why shouldn’t he? The night is still young.

A young man is reborn into a fantasy-like game and begins a journey to form his very own harem.

The story takes place in the year 2138 when virtual reality gaming is booming. Yggdrasil, a popular online game is quietly shut down one day. However, the protagonist Momonga decides to not log out. Momonga is then transformed into the image of a skeleton as "the most powerful wizard." The world continues to change, with non-player characters (NPCs) beginning to feel emotion. Having no parents, friends, or place in society, this ordinary young man Momonga then strives to take over the new world the game has become.

The scientists of the μ(Mew) Project use DNA of endangered species to create a team of heroines imbued with amazing super-human abilities. One of them, Ichigo Momomiya, awakens to discover she is armed with all the skills of a Iriomote cat. Ichigo must band together with other Mew Mew girls to repel an alien incursion, all the while hiding their thrilling double lives from friends and family.

Gol D. Roger was known as the Pirate King, the strongest and most infamous being to have sailed the Grand Line. The capture and death of Roger by the World Government brought a change throughout the world. His last words before his death revealed the existence of the greatest treasure in the world, One Piece. It was this revelation that brought about the Grand Age of Pirates, men who dreamed of finding One Piece—which promises an unlimited amount of riches and fame—and quite possibly the pinnacle of glory and the title of the Pirate King.

Enter Monkey D. Luffy, a 17-year-old boy who defies your standard definition of a pirate. Rather than the popular persona of a wicked, hardened, toothless pirate ransacking villages for fun, Luffy’s reason for being a pirate is one of pure wonder: the thought of an exciting adventure that leads him to intriguing people and ultimately, the promised treasure. Following in the footsteps of his childhood hero, Luffy and his crew travel across the Grand Line, experiencing crazy adventures, unveiling dark mysteries and battling strong enemies, all in order to reach the most coveted of all fortunes—One Piece.

The seemingly ordinary and unimpressive Saitama has a rather unique hobby: being a hero. In order to pursue his childhood dream, he trained relentlessly for three years—and lost all of his hair in the process. Now, Saitama is incredibly powerful, so much so that no enemy is able to defeat him in battle. In fact, all it takes to defeat evildoers with just one punch has led to an unexpected problem—he is no longer able to enjoy the thrill of battling and has become quite bored.

Izuku has dreamt of being a hero all his life—a lofty goal for anyone, but especially challenging for a kid with no superpowers. That’s right, in a world where eighty percent of the population has some kind of super-powered “quirk,” Izuku was unlucky enough to be born completely normal. But that’s not enough to stop him from enrolling in one of the world’s most prestigious hero academies.

A mysterious organization is sending out invitations for a tournament to every skilled fighter in the world. They’re recruiting only the best to fight the best and claim the title of The God Of High School.

Guts, the Black Swordsman, wanders around in a medieval world slaying demons as they are attracted to a demonic mark on his neck. To his help he has inhuman strength gained from a harsh childhood lived with mercenaries, a gigantic sword, an iron prosthetic left hand and the elf Puck. In his search for vengeance on the one who gave him the mark, he meets many interesting persons and creatures, whom all is affected by him in one way or another.