Diana works specifically for the children at St. Mungo's. When everything goes down hill with a heavily pregnant Ginny, Draco and Hermione's illegitimate child and Harry's affair, all Diana wishes for is that she asked out the girl from Flourish & Blotts.

Rose Weasley is off to her first year of Hogwarts when she meets a young girl called Amelia. Together through the years, the two form a tight friendship that helps them to deal with their own problems. Femslash in later chapters

Harry Potter receives two guardians who aren't what you would call 'normal' under muggle or wizards description of normal. BTVSHP crossover.