Heeseung and Jungwon are brothers, they both are smart and really playful about each other and they're popular at school. But the thing is they both like the same person, and it's you. They are in a competition who would win your heart and making them that you're there priority. Nothing more, Nothing less.

while you are walking, there is a motorcycle that is going in your direction but it's to late, your in the ground. You're about to stand up but you saw Heeseung, "Watch were you going"