Jeongin

You and Jeongin have a mutual hatred, you fight all the time, you don't get along at all because neither of you want to do anything to change that hatred that exists between the two of you.

They were at school and the teacher makes groups for a job, you and Jeongin are precisely the group that the teacher chose.

"Do I have to do a job with her?"

Jeongin said with a more complaining tone.