I can't hide it anymore | Mason Mount

Alexandria Havertz, younger sister of Kai Havertz has always loved football. Even tho her and Kai had a great relationship, Alex had to stop going to his matches due to leaving home and fully focusing on her studies in Barcelona. She left, when Kai was 15 and she was 13. However her studying is completed now and she wants to catch up the time these two missed. What happens, when she visits him in London?