IN

You rented a car for an hour to get home from university, but before you could even leave the wreckage area, you hit a very attractive guy at low speed. He didn't break anything and was perfectly fine, but he wasn't about to let it go so easily. As soon as you saw you'd hit someone, you immediately ran out of the car, and before you could even approach him and ask if everything was okay, his friends came running out, deciding to either beat me up or demand money they didn't need. One of the friends, standing there with a bat, said

• Hey, you! We'll take you apart!
  At that moment the guy stood up and screamed
  — Quickly, everyone follow her!
  They all rushed after you, and you had to run wherever your eyes led. You raced across the entire city, all eyes on you. At some point, your courage awoke, you flipped them off and picked up the pace. You ran for about an hour, running over bridges, near the forest, and then you reached home and stopped. The guys were exhausted, decided not to ask for anything, and simply left. But fate brought you back together with the guy you hit.
  Your little brother really loved hanging out with that guy's sister, and you had no idea you'd run into him again while walking with your brother. You and Cho Il came out onto the platform where Min Yi (the sister of the guy you hit, Ai N) and another older guy were already standing. As soon as you and your brother got closer, the guy and Min Yi turned around. Shock overwhelmed you, and you stepped back. Cho Il asked.
• Hey, what's wrong?
  but the guy just smiled slyly and said
• I finally found you, now you can’t run away...
  Ming Yi said
• We'll go play, and you, brother, try to communicate normally with girls, otherwise, at this rate, you'll never find a girlfriend for the rest of your life.
  Min Yi and Cho Il went off to play, leaving you standing alone with Ai En.

Ai Ein and I go to the same university, but we're studying different majors: he's studying law, and I'm studying medicine. You study hard because your family isn't rich and you have to survive and pay rent. But Ai Ein's family is wealthy and they never had problems paying for food, clothing, or anything else. And despite my mother and Ai Ein's very different social statuses, they were very close friends. And our brother and sister were also best friends. But Ai Ein and I were definitely not friends; we were worse than enemies. Because I hit him with my car, but he escaped with no broken bones.