In a post-apocalyptic society, much of earthquake-riddled Japan has been left to ruin, resulting in an abundance of greenery. Governments manage much of the world's emissions, resulting in a massive class divide and economic disparity. The Japanese government launches "Project Atlas," a utopian city that will replace Tokyo but can only fit a certain amount of people. This limitation means that some people will have to live outside the city in jungles, as refugees. However, with any flawed plan comes those who are willing to challenge it. These include Kuniko Houjou, an heir to a renegade town; Mikuni, a mysterious and powerful child kept in a secret temple; Kunihito Kusanagi, a soldier for the high-tech and exclusive monopoly Atlas; Karin Ishida, a genius economics whiz with her hand in markets across the world; and the villainous Ryouko Naruse, leading Atlas in its domination of this future world. Can this group of rebels, forming a movement known as "Metal-Age," band together to demonstrate that inclusion and teamwork prevail over cruel segregation? [Written by MAL Rewrite]

Years ago, many magical "Artifacts" were stolen and scattered throughout the world. They fell into the hands of people who were not supposed to know of their existence, causing misfortune to those who abused their power. The Hoshisato family of magicians has special access to the Artifacts, and they take it upon themselves to return them to their rightful place. Despite her inexperience, Kana "Hatena" Hoshisato wishes to aid her parents Mamoru and Maeve in their quest, doing her best to improve. Meanwhile, her childhood friend Makoto Shiranui has come to their mansion to study magic under her father's tutelage as part of a promise they made years ago. Hatena is excited to see her friend again, only to be utterly disappointed when the person she thought to be a girl all these years turns out to be a boy, leading to a bitter reunion. Before long, Makoto comes to know of the Artifacts and the true identities of the magicians he admires. Unfazed, he continues to strive to fulfill his promises and stay true to why he learns magic—to ease the sadness of people around him and, most importantly, to become a person worthy of being Hatena's partner. [Written by MAL Rewrite]

Long ago, there was a monk named Myoue who could bring anything he drew to life. He quietly lived with his wife Koto—a black rabbit in human form—and their three children: Yakushimaru, Kurama, and Yase. One day, the high priest of the land concluded that Myoue's drawings caused too many problems for the locals and ordered him to find a solution. In response, the family secretly fled to an alternate world of Myoue's own creation—the Looking Glass City. Everything was peaceful until Myoue and Koto suddenly vanished. Their three children are left to take care of the city, and Yakushimaru inherits Myoue's name and duties. Stranded in this alternate world, their problems only get worse when a young girl—also named Koto—crashes down from the sky and declares that she is also looking for the older Myoue and Koto. Armed with a giant hammer and two rowdy familiars, Koto just might be the key to releasing everyone from the eternal paper city. [Written by MAL Rewrite]

On his way home from school, Tatsumi sees a man collapsed near a lake. When he approaches him, Tatsumi notices something strange: the person in need of help is actually a beautiful merman named Wakasa! Because Wakasa's home has become too polluted to live in, Tatsumi graciously offers his bathtub as a refuge. With a boisterous merman as his new roommate, Tatsumi's normal life won't be returning anytime soon, not to mention Wakasa's aquatic friends—Takasu, Mikuni, and Maki—often show up uninvited, making them all quite a handful for the high school student. As he humors their curiosity for human life, Tatsumi sometimes finds himself enjoying their childish antics, but he will have to keep his cool if he intends to keep up with his daily life and newfound friendship. [Written by MAL Rewrite]