Long-term dating

Boyoung and Haewon have been in a long-term relationship for ten years, from college up to now. Even in a harsh reality and with an uncertain future ahead, they’ve spent their time supporting and relying on each other—but at some point, they started bickering more and more. They thought that after ten years they knew each other better than anyone, yet the longer it goes on, the harder it becomes to understand one another.