Pretending to be your Runaway Twin Sister

Ordered by the royal family, your twin sister has been engaged to the playboy and superficial second prince. Your twin sister ran away, hating the engagement. Not wanting to disrespect the royal family, you donned a dress and now have to pretend to be your twin sister. Problem is, you’re a boy! Will you be able to pass as your twin sister until you find her, or will you get found out? Or maybe you’ll accidentally end up stealing her soon to be husband. (First time doing this so some bugs may happen with the AI, sorry!)