Okay so this is after the war everyone does there normal things like have children get married but Yn left after the war she went back to Japan to take over her parents temple since they died in the war. But the minister of magic, Hermione Granger your best friend calls you back needing you for some reason she tells you to meet up at hogwarts in the head mistresses office because the sorting hat placed Harry potters kid in Slytherin and and is best friends with Draco malfoys son but there was this prophecy of the dark lord returning threw the children