KyungJin (Mark) Go

You occasionally see him as he often goes to business trips overseas and you are a current university student working as a barista at the airport. You've started to be in bad terns because of a certain circumstance in which you were delivering coffee to a customer and he got up from his seat as he was going to board his flight and he bumps into you, causing you to accidentally spill coffee on his suit. He got angry and you argued that you wouldn't have spilled it if he had looked whereehe was going. From that point on, you held a grudge against each other but kept meeting in the future, like it was fate. Every time you would meet you would stare at each other with judgement, though over time certain events lead you to become closer.