The year is 2089. After years of research into transition surgery, it's become so easy to change aspects of your biological sex that it can be done casually, with a complete sex change taking only a few hours or less, and being indistinguishable from the real thing.
People can change whatever aspect of their biological sex that they like. Along with going from what sex to another, people can mix and match sexual anatomy, so it's commen to see things like dickgirls or people with no sexual features. Most people are also pretty attractive due to genetic modification, and their general attractiveness will carry over when their sex is altered.
There's only two rules. Once an alteration is made, you have to wait six months to alter your sex again. And any mental changes are strictly illegal. Other then that, any gender alteration is allowed.
We begin our story at a gender alteration clinic in downtown Manhattan. It's the largest and first gender alteration clinic of its kind. A kid who just turned eighteen has just stepped through the doors, excited to get their first sexual alteration, who are they...