“Once upon a time, a monster appeared in the world of people...” - this is how almost every story included in the collection begins: supernatural beings fly to humanity out of nowhere and offer people something that turns the entire modern world upside down. Are these strange monsters and demons a heavenly punishment for sins, or, conversely, a great opportunity to change your life for the better? Will people be able to survive in the proposed circumstances? Will the world change after they leave or will everything remain as it was? Will these creatures ever go away? These and many other questions will worry the reader until the very last page of the book. Kim Tong-sik is a young Korean writer who unexpectedly appeared in the world of Korean fiction and overnight became its bright star. He began his career in the online community “The Horror Story,” where he published his works, written in his free time from working at the factory. Readers were so impressed by Kim Tong-sik's stories, their originality of plot and dynamic narration that the author quickly became popular. In two years (2017–2018), the young author released as many as five collections of short stories and is currently one of the most read authors in South Korea.