dwale
drownin
We live on a planet where everyone stops aging at the age of eighteen. Nobody knows why, but nobody questions it either and no research is being conducted. But the moment we meet our soul mate, the person we are destined to be and fall in love with, we start aging like any other beings. You grow old with that person, day by day, week by week and year by year.
That is, unless, something unfortunate happens to you or your soul mate. If one of you dies then you stop aging and will remain the age you are until you meet the reincarnation of your previous lover, who knows nothing of or about you.
Before soul mates are found you do what any regular person would do. Go to school, get a job, find some place to live and hang out with your friends. And then everything changes and your whole world is this, and only that person, organism you have never met but they are to play such a huge role in your life.
So fear not, for your soulmate is on their way.