The story follows the strongest king in history, Grey. Although he possesses unparalleled power, wealth, and fame, there is no one who stands by his side…and he trusts no one. One day, Grey suddenly meets his death and is reincarnated as a powerless infant named Arthur in a world of magic. Surrounded by a loving family and companions, Arthur starts to experience joys in this new life that he never knew in his previous one. However, during a journey, his family is attacked by bandits... Thus begins his second life, filled with love and adventure!

In the kingdom of Girtonia, the Adenauer family has been giving birth to saints for centuries. Two sisters form the newest generation of holy women who protect the lands from monsters and calamities. The eldest, Philia, is considered a prodigy in the field, capable of solving any problem in no time. Meanwhile, the youngest, Mia, is not as extraordinary as her older sister but has charmed the entire country with her lovely personality. Despite their striking differences, Philia and Mia share an unbreakable bond. Sadly, Mia is the only person who truly cares for Philia. Because of Philia's expressionless face and aloof demeanor, their parents always scold her, and the citizens complain about her. Moreover, Julius Girtonia, the second prince and Philia's fiancé, would rather have a more amicable girl as his wife-to-be. For that reason, he cancels the engagement and sells Philia off to the neighboring kingdom, Parnacorta, which has recently lost its own saint. Having no say on the matter, Philia immediately goes to serve Parnacorta. As a foreigner, she presumes that she will not be treated much better than in Girtonia. Contrary to her expectations, Philia might have finally found a place with people worth smiling for.

Gold Roger was known as the "Pirate King," the strongest and most infamous being to have sailed the Grand Line. The capture and execution 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 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. [Written by MAL Rewrite]

Beryl Gardinant, a self-proclaimed "humble old man," is a sword instructor at his dojo in a rural, backwater village. In his younger years, he dreamed of glory as a master swordsman, but those days are long behind him. Out of the blue, he receives a visit from a famous former pupil who brings him world-shattering news—he's been appointed as a special instructor for the knights of the Liberion Order! With his life now turned upside down, Beryl travels to the capital and reunites with some of his former students: elite knights, an ace wizard, and even an adventurer who's attained the highest guild rank possible. But why do they all want his tutelage?! As far as he's concerned, they clearly don't need him anymore. Can Beryl live up to his new position? And will he ever get a moment's peace away from his adoring students?!

After Jinta and Suzune ran away from their home as children, they were taken in by Motoharu—the virtuous sentinel of Kadono Village—and his daughter, Shirayuki. The settlement was ruled by its shrine maiden, Itsukihime, whom only a select few were allowed to interact with. When Itsukihime passed away, Shirayuki was appointed in her place. Wishing to stay in contact with her, Jinta worked diligently for years and was finally selected as the next sentinel. As the protector of the village, Jinta's duty is to eliminate any threats. One day, he encounters a demon in a nearby forest. At the end of the battle, the demon makes a proclamation about the destined ruler of all demonkind. He attaches his severed arm to Jinta, turning him into an unaging demon man. By the time Jinta comes to, Kadono is on fire. Suzune has transformed into the demon from the divination, and due to a series of misunderstandings, she murders Shirayuki and flees. Devastated, Jinta cannot forgive Suzune for her actions; he departs on a journey to find her. As Jinta travels around Japan across the eras, he endeavors to protect as many people as possible from aggressive demons. In his quiet moments, he contemplates what he should do when he once again faces his childhood friend.

Life hasn't been kind to Zenos. He was born in the slums, and his dirt-poor background has denied him almost every opportunity. After an encounter with a healer, he throws himself into studying to become one and finally catches a break when an adventurer invites Zenos into his party. Zenos is thrilled—so thrilled, in fact, that he's willing to put up with his teammates treating him like garbage. They fail to appreciate his talents and ultimately kick him to the curb, claiming he's outlived his usefulness to them. Now bereft of money and out of options, Zenos decides to put his self-taught skills to use elsewhere and opens an underground clinic. Word quickly spreads about the brilliant healer working incredible magic in the city's shadowy underbelly. Even the royal palace is taking notice... Can Zenos buck the odds and carve out a life for himself in a world that's spit in his face? And can he save the lives of the patients who wind up on his doorstep in the process?

The year is 2052—an era of unprecedented peace and prosperity prevails across the globe. The reason for this: mankind has been freed from sickness and pain. Nobel Prize winning neuroscientist Dr. Skinner has developed a miracle cure-all drug with no apparent drawbacks called Hapuna. Hapuna soon becomes ubiquitous... and essential. However, soon after Hapuna is officially introduced, Dr. Skinner vanishes. Three years later, the world has moved on. But Dr. Skinner has returned—this time, as a harbinger of doom. Skinner announces that Hapuna has a short half-life. Everyone who has taken it will die approximately three years later. Death is coming for this sinful world—and coming soon. As a response to this threat, a special task force of 5 agents is gathered from across the world to save humanity from Skinner’s plan. This group is called "Lazarus." Can they find Skinner and develop a vaccine before time runs out?