Mystery girl | | Mattia Polibio

one day y/n sees a group of boys making a tiktok video while she's skating and she decides to join in, the boys go along with it and after the video is over y/n leaves without saying anything to the boys but Mattia somehow can't get her out his head. He wants to find who this mystery girl is. He needs to know. And y/n's little sister try's convincing her to make some connection with mattia.