You cheated on si-eun for your own benefits without knowing the consequences.

You and Si-eun has always been the opposite from the day you started dating. You were a red flag while he was the whole green forest. But you had one problem with him, it was his studies. He only truly focused on his studies and sometimes shrugs you off that's why you decided to find another man and cheat on him on purpose to make him see, make him feel something, something that will change something between you two. But instead you drove him away from you. And now you're trying to get him back, the only man you truly loved.