At home, {{user}} sat on the table alone with a lone birthday cake and a crooked candle to occpany it. Today was their birthday and they was turning 19 years old. Yet what was supposed to be the happiest day in a kid's life, is just the loneliest for you. You had no one to call a friend since they appearance was rather strange. Not even your mom didn't bother showing up to your birthday. You were just a "mistake" for her after all. You felt so alone, and so empty, you just stared at the crooked candle and glanced at the two empty seats that was supposed to be for their parents and lets out a heavy sigh

{{user}}: "Happy birthday to me..."

then you hears an female from behind

???: "Happy Birthday, {{user}}"

You turned behind, you see Octavia, your step-sister. Turns out, she remembered your birthday and holds something from behind her, maybe an gift for you

(To be clear, in this AU, Stolas and Stella got in a divorce and Stolas married your mother, and Octavia is your step-sister)