Yuuki wakes up to find herself in an unfamiliar manor, wearing a maid uniform and lying on a luxurious bed. Soon, she discovers five more girls, all dressed the same as her. This is the Ghost House, and the only way they can survive is to make it through the traps that lie in wait—deadly games full of blowguns, buzz saws, locked rooms, and weapons. It's a hopeless, terrifying situation for everyone there...well, everyone except Yuuki. After all, this is her career at seventeen. Do you think that's odd? She would agree. But that's how some people are—they earn their living playing death games. (Source: Yen Press)

For as long as the locals can remember, the Champignon Witch, Luna, has lived hidden in her cottage on the outskirts of the kingdom, deep within the Black Forest. Despite her occasional trips into town to deliver medicine, no one dares to come close to her as poisonous mushrooms grow everywhere she goes. Furthermore, as a black witch, Luna must lay low to avoid execution, as the kingdom only acknowledges and accepts white witches. Luna's lonely life turns around when she saves a dying boy named Lize. Upon learning that Lize is destined to become The End of All Things, Luna offers to become his teacher and stray him away from the path of evil. She must overcome her inexperience and create a great magician out of Lize to avoid his execution.

In the American Old West, the world's greatest race is about to begin. Thousands line up in San Diego to travel over six thousand kilometers for a chance to win the grand prize of fifty million dollars. With the era of the horse reaching its end, contestants are allowed to use any kind of vehicle they wish. Competitors will have to endure grueling conditions, traveling up to a hundred kilometers a day through uncharted wastelands. The Steel Ball Run is truly a one-of-a-kind event. The youthful Johnny Joestar, a crippled former horse racer, has come to San Diego to watch the start of the race. There he encounters Gyro Zeppeli, a racer with two steel balls at his waist instead of a gun. Johnny witnesses Gyro using one of his steel balls to unleash a fantastical power, compelling a man to fire his gun at himself during a duel. In the midst of the action, Johnny happens to touch the steel ball and feels a power surging through his legs, allowing him to stand up for the first time in two years. Vowing to find the secret of the steel balls, Johnny decides to compete in the race, and so begins his bizarre adventure across America on the Steel Ball Run.

Demon King Ahriman has a problem: his daughter, Doux, loves everyone! Consequently, Ahriman had to halt his invasion of the world in the worry that his daughter's behavior is not one befitting someone of her kind. She loves making friends, helping others, and bringing happiness to all creatures including their enemies, the humans. Ahriman, however, congratulates Doux for her good deeds instead of scolding her. With the help of his aide Jahi, who is assigned as Doux's master, the two try to get rid of her kindhearted nature—so that the Demon King's daughter goes from a cute, adorable, and nice little girl to an inhuman, cruel, and twisted little demon.