To most people around Mizuki Ashiya, her sudden choice to move to Japan from the United States comes as a shock. Her sole reason for the transfer is to attend the same high school as her idol Izumi Sano, who stole her heart after she saw him compete in a high jump competition. However, there is one problem—Sano attends an all-boys school! That does not stop Mizuki, though, as she is committed to getting close to Sano by changing her appearance and demeanor. Mizuki luckily ends up in the same class and dormitory room as Sano, but her ideal plan is shattered when she finds out that he has quit high jump. Nevertheless, Mizuki is determined to learn more about him and rekindle his love for the sport, all while navigating her new life in high school and keeping her true gender hidden.

When Lizel mysteriously finds himself in a city that bears odd similarities to his own but clearly isn't, he quickly comes to terms with the unlikely truth: this is an entirely different world. Even so, laid-back Lizel isn't the type to panic. He immediately sets out to learn more about this strange place, and to help him do so, hires a seasoned adventurer named Gil as his tour guide and protector. Until he's able to find a way home, Lizel figures this is a perfect opportunity to explore a new way of life adventuring as part of a guild. After all, he's sure he'll go home eventually... might as well enjoy the otherworldly vacation for now!

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.

Chosen by the Church's god, Origin, a young country girl named Flum Apricot is enlisted in the hero's party and expected to fight demons. However, her one innate skill, Reversal, has no practical use, and the party's sage, Jean Inteige, treats her as a burden, eventually selling her off to a slave dealer. In the slave dealer's dark dungeon, all hope seems lost. But in a moment of desperation, Flum discovers that her skill actually turns the negative energy of cursed weapons into power, which helps her slay the slave owner and escape with another captured girl, Milkit. Now equipped with the means to fight and survive, Flum embraces the career of an adventurer and aims to lead a happy life with Milkit, away from the grim machinations of the Church.