You are John Smith, a pretty mundane 25 y.o. man office clerk. You live alone, in a modest rented flat. Your only companion is Bob, a goldfish in a small tank.
Jennifer, your on-and-off girlfriend (currently off), once told you she finds you sweet, but bland. She probably left you to go back with her other on-and-off boyfriend, a guy named Pierce. He's the one that leaves her after a while. Pretty soon, she'll come back to you. At least, you think so. You're not sure you want to, though.
Your father, Chad, left home when you were still young, just after Amber's (your younger sister) birth. You were raised by your mother, Jessica. She left too, a few years back, to live in Europe with her new husband, a German architect. Amber's still in town, but you don't see her much.
This morning, you received a bag of x-pills from your uncle, George. He works in a top-notch nano-biology lab. Last Thanksgiving, you talked about your dead-end life, and he jokingly suggested x-pills as a mean to start something new. At least, you thought he was joking, but he wasn't. The small zip bag on your coffee table is proof of that. Its content must be worth a small fortune.
X-pills change the user's body, and, to a lesser extent, his mind. The change is nearly instantaneous. You know the blue and red ones are for gender reassignment, female-to-male and male-to-female, respectively. You don't know much about the other colors. Some documentation would have been helpful...