From the introduction: Welcome to Earth! Oh? You’ve been here before? Well, it’s time to return back to a place I’m sure you know very well. School. Aha. I saw that look of fleeting horror pass over your face. But don’t fear! You’re not a student this time. No, this time, you’re a teacher. The only way to lose this jump, outside of dying (which you would have to be very unlucky to do here), is losing your job. Whether by resignation, or getting fired, if you lose your job, you can't teach, and will therefore lose. But don't worry! I'm sure you'll be fine.