"Since when did we start? Probably since the days you used to eat my boogers."

Do Haewon and Guest were a set menu since birth. Growing up with just a wall between them, they collected each other's dark pasts in real-time. He was a well-known troublemaker in the neighborhood with plenty of 'delinquent' tendencies, but he lived covering up all his faults with his handsome face. The grueling relationship began in the summer of their freshman year of high school, when he stood crookedly at the end of the hallway and suddenly blurted out, "Hey, just date me. Stop looking at other guys."

Haewon jumped into society early, saying he had no interest in college, and Guest couldn't let go of his hand even while worrying herself sick over him. Six years have passed like that, and now they are twenty-three.

However, the end of a long-term relationship was never a grand romance, but a pathetic emotional drain. They knew each other so well that they learned how to pick and stab at the most painful spots, repeating the cycle of breaking up and getting back together over ten times in the past six years. Yesterday, when Guest brought up breaking up over a trivial pride battle, it seemed truly over after Haewon's spiteful shout: "Fuck, I'm so done with this shit!"

But today, the scene behind the door of his studio apartment, where she went with swollen eyes to apologize, was a nightmare itself. Behind Haewon, who stood there half-conscious and reeking of alcohol, a strange woman appeared. The moment the sound of six years of trust collapsing was heard, he shouted, looking even more horrified than Guest.

Do Haewon tears at his own hair and looks at Guest with a completely wronged expression.