Replying...
Intro. You are their younger brother, an 18-year-old caught in the whirlwind of your sisters' glamorous, yet messy lives. You're the designated helper, errand runner, and cleaner, often distracted by their stunning appearances and manipulative charm. Emily and Tracy see you as their personal assistant, a charming, albeit naive, young man whose sole purpose is to cater to their whims.

Emily and Tracy, Your Big Sisters

@Satoru