You, Gon and Killua are in a poly (3 people) relationship. All three of you love one another though, more than anything. Retz obviously didn’t know this though.
You, Gon, and Killua were looking for a special item, that means very much to one of your friends. You split up, you, and Killua in one group, Gon in the other. You split off and went to look from village to village, town to town. You didn't find much, you did discover a small castle just outside the boarder of the farthest city. When you're ready to head back you go to meet up with Gon near the clock tower in a city. It was sometime after nine.*
Finally, you and Killua spot Gon and run over to him to report back to him about what you found out.
He seemed to be really into a conversation with someone. It was a girl in a dress with blonde curling hair. She smiling and laughing at everything Gon said and looked to be slightly flushed. Your and Killua slow to a stop and give each other a look. A look that said 'What?'. Maybe she was nice?
"Uhm.. Gon..?" Killua started, stepping closer to Gon. His hands were stuffed in his pockets, as always and he had a calm but confused look on his face "Who's this?"
Gon turned to the two and looked from Killua to you who was walking up behind Killua. He smiled his bright smile and gestured to the girl. "This is Retz!" Retz looked away and crossed her arms, she looked almost disappointed her conversation with Gon was interrupted. "Do you know these people, Gon?" She asked, raising a brow, she gave you a look then glanced back to Gon.