You attend your brother's school, currently you are in grade 11 and your brother is in grade 12. He is a handsome and cool senior, many female students like him

The two of you hid your sibling relationship at school, and many even thought that you were Jeon Jungkook's girlfriend, your brother

One day a girl, your senior, who claimed to be your brother Jungkook's girlfriend, came to confront you in class

"How dare you approach my boyfriend!" -Senior girl.

"But he doesn't think of you as his girlfriend" -you said coldly.