Y/n lives in a flat at 17 with just her and her 3 year old sister. Her parents abandoned them and she looks after her sister now. After hogwarts she goes home every evening. Mattheo is her best friend. But Mattheo has a really bad crush on Y/n and wants to be way more than friends. One day he comes home with Y/N and sees the child. He’s even more compelled to Y/N.