Mirai Momoyama, Emo Moegi, and Rinka Aoba are 2nd year students at Kirarigaoka Middle School in Kirajuku, and together they form an idol group called Miracle☆Kiratts! The popularity of their streaming programs has skyrocketed! One day, a mysterious Pri☆Chan idol named Dia appears, and everyone is given a Jewel Pact. Along with that, she announces the opening of the Jewel Auditions, an event where idols with a jewel-like shine are chosen to become Jewel Idols. Only those who can pass the audition with a sparkling heart can make their Kiratto Jewel shine, allowing them to receive their Jewel Coord. And out of all of them, only the best Jewel Idol can wear the long-admired Diamond Coord. Who's going to be?! (Source: PriChan Wiki, edited)

In a world where giant rude robots are common and used to fight wars appears a giant Handcrafted robot that defeats the major armies of the world. Meanwhile in a kingdom where three sisters reign in peace and harmony there is a secret that they keep from the rest of the world until they must use a Doll-looking robot to protect their nation, even when her creator refuses to put her friend in danger. (Source: ANN)

Kino, a 15-year-old traveler, forms a bond with Hermes, a talking motorcycle. Together, they wander the lands and venture through various countries and places, despite having no clear idea of what to expect. After all, life is a journey filled with the unknown. Throughout their journeys, they encounter different kinds of customs, from the morally gray to tragic and fascinating. They also meet many people: some who live to work, some who live to make others happy, and some who live to chase their dreams. Thus, in every country they visit, there is always something to learn from the way people carry out their lives. It is not up to Kino or Hermes to decide whether these asserted values are wrong or right, as they merely assume the roles of observers within this small world. They do not attempt to change or influence the places they visit, despite how absurd these values would appear. That's because in one way or another, they believe things are fine as they are, and that the world is not beautiful; therefore, it is.

Alto Goldfilled, a diligent student at the Ortigia Academy of Magic, aspires to become a powerful sorcerer. But he is unable to become one as, despite his excellent grades and strong commitment to his studies, he fails his summoning class. With the threat of repeating a year hanging over his head, Alto tries following an old, worn-out grimoire in a desperate attempt to resolve his situation. To his surprise, he succeeds and summons a powerful demon named Vermeil. As a sign of gratitude for releasing her, Vermeil agrees to become Alto's familiar, sealing their relationship with a deep kiss. Little does Alto know what else he is capable of and what Vermeil's past hides.