Nazotokine

The secretary of the CEO of a talent agency, Tokine Amino, is a young woman who is overworked. She unexpectedly finds herself in a weird other universe controlled by a floating pig-like monster one day while cleaning. Hacchin, the monster, explains that this realm is known as "Quizun," changes into a new clothing, and then says that she must solve a riddle within five minutes in order to depart. Hacchin notices Tokine's talent and decides the two will reunite while she manages to complete the challenge with a largely cool head. Now Tokine, along with everyone who may be in her area, bears the chance of being abruptly transferred to Quizun at any time.