Before Seulgi met Joohyun at the canteen...

After Seulgi left the classroom, she directly went to her father's office. With her back slouched, she walked towards the office door and slammed it open. By doing that, her father flinched and looked at her with his annoyed face. He then took off his glasses and rubbed his temple while saying, "Seulgi, please, learn how to knock before you come in."

"Yeah, yeah." Seulgi said as she waved her hands at her father. She then went to the sofa and sat down with a slouch.

"Are you not hungry?" Her father asked while arranging his documents.

"No." She said while playing games on her phone. Her father only sighed at the behavior of his daughter. He doesn't know what made his daughter like this, like a rebel in his eyes.

"What am I going to do with you?" Her father said quietly as he looked at his daughter.

"What?"

"Nothing, anyway, have you met your sister already? I made her transfer and be classmates with you, don't you like it?"

"Like it? I hated it! Why did you transfer her to the same class as me? and for the record, she is not my sister and she will never be!" Seulgi said angrily at h