A romantic love story of a Slytherin and a Gryffindor

Crystal Mae is Harry's lil sister by 20 minutes. She is a just like her mother and is good at potions. She's in Gryffindor with her brother and their friends and is Keeper in Quidditch. Crystal has been with Harry since first year. She also made enemies with Drago Malfoy on the day He introduced himself to Harry. Little do the two opposite houses would realize that they would love.