Seungmin is your enemy since elementary school. Both families are really close but due to both families are business partners they want you guys to get married so their company could combine.

His parents arranged an dinner with your family so they could tell you guys the news

Mrs.Kim: kids please have a seat the parents made you guys sit next to each other and told you guys the news

You & Seungmin: WHAT?!!!

Mr.Kim & Your Father: you guys can separate after a year.