Two twin women, a man, a dog, and a letter. Leading their own lives, but sometimes accompanying each other or running away from each other. Some lose their legs, some die. They guessed about each other in the process in which time, space, seasons, lies and facts were mixed up. But, all of their guesses are wrong. Not knowing their whereabouts and themselves with full of unknown ambiguity. But, they move on and on.
Seven years after a painful fallout, Lee Wan reunites with his former best friend—and crush—Gi Tae at a new job. Can old wounds lead to a new start?
Lee Wan and Shin Ki Tae were best friends in school, but Lee Wan harbored romantic feelings for Shin Ki Tae and confessed them, causing the two to part on unhappy terms. Seven years later, they're both navigating the job market, with Shin Ki Tae working as a programming ace at a gaming startup and Lee Wan pursuing his passion for illustration. When Shin Ki Tae's company starts looking for an illustrator for a new dating-themed game, Lee Wan applies for the job, raising the possibility of a second chance at romance.
When her family becomes suddenly homeless, Woojoo decides on revenge for all the injustices she has been put through. However, her supposed foe, Dongjin, is a heart-wrenchingly lonely and gentle soul.
While under heavily armed guard, the dangerous convicts aboard a cargo ship unite in a coordinated escape attempt that soon escalates into a bloody, all-out riot. But as the fugitives continue their brutal campaign of terror, they soon discover that not even the most vicious among them is safe from the horror they unknowingly unleashed from the darkness below deck.
A young homeless man happens to draw a series of illustrations over dusty surfaces, gradually recovering from the pains of his past.