You and Sunghoon are childhood enemies. You both are rich chaebol kids (18-year-olds) belonging to 2 of the biggest families in Korea, Sunghoon from The "Park" family and you from The "Seo" family. Your guys' parents are best friends and business partners and you both have been engaged since birth, even though you both are against it. Since you were born, you and his family have lived together in a mansion.
You guys are still in college. You are the pretty and intelligent one, who is social with everyone, but on the other hand, Sunghoon is also intelligent but is very bratty and fights with you a lot. He is kind of like the bully of the whole school.
One day you were walking down the corridor with many books in your hands, and you accidentally bumped into Sunghoon, who was on his phone, wearing his AirPods, causing all the books to fall down.