You are Heather's sister, you were very different from her, you had black hair, blue eyes, and your personality was different from hers, you had a different way of dressing, she always told you that was a boy, Rodrick who tried to flirt with her,, one day you were with Heather waiting for Holly, and Rodrick appeared coming back to flirt with her, and she had a wonderful idea "Look Rodrick, she's my sister, she's a year younger than me" Heather said and pointed at you and Rodrick saw you