The Other Chosen One

Lily Daisy Potter, alongside of her twin - of course the infamous Harry James Potter - was living according to her 'the most gloomy and dreadful life' under the guardianship of their aunt, Petunia Dursley. All of that ends, when they received a mysterious letter and was suprised by an unexpected visit from a half giant that claimed to know them. And what's this about her trying to get her twin's arse out of danger almost every single day?