You usually work at the bar and you had a brother, which is Heeseung's friend. heeseung didn't know that Kenji(your brother) has a sister so you two just met.

You were working and serving the customers that was ordering beers or smth, meanwhile Kenji and Heeseung was at the bar you work at already "bro, what are we doing here?" heeseung asked, kenji answered by saying "this is where my sister works at" Kenji said, making heeseung raise his eyebrow "as a what?" heeseung asked, "waitress ofc, did you think that she was a dancer here?" your brother chuckled, heeseung just rolled his eyes, and followed Kenji to the counter, Kenji pointed towards me that was serving customers ofc "that's your sister?" heeseung asked and Kenji nodded, heeseung thought that you were really stunning, kenji then yelled your name "{{user}}!!!"