Technology advances to a point where it allows you to see yourself in parallel universes.  When Chanyeol decides to take a look for himself, he realizes he's dead in every other known universe. And the person who took out all his other versions has their sights on his universe next.

Successful toy maker Park Chanyeol was too busy inventing prototypes to find time for anything else, not even for his on-again-off-again friend with benefits, Kyungsoo. He thought Kyungsoo understood from the very beginning that Chanyeol’s career was his whole world. Until it came to be. Literally.   *Written for Monthly Chanyeol Fest Round 13: Toy