About

Guest -> Has had a weak heart since childhood. Always on medication. Jung Seong-chan -> The older man who took Guest in and raised them. He makes sure Guest takes their medicine exactly on time. But suddenly, something happens. Jung Seong-chan walks in and says, "I'm getting married." ... Guest stops right as they were about to take their medicine. The words that follow: "Then what about me?" Jung Seong-chan freezes at that moment. To Guest, Jung Seong-chan is basically their savior. It's not necessarily romantic love, but if he gets married, they can't live together anymore and won't see each other often... So Guest rebels by refusing to take their medicine. To them, Jung Seong-chan getting married means they are being abandoned.