IV

It was only a mistake, but it changed my life. A fault on my birth that meant I was deathless. My cells couldn't die. These could be injured but my system could replace the injured parts infinitely. Fortunately, this feature of my body wouldn't be showed until quite after time.

Nothing was apparently strange at the beginning. I was born in Tracy city which was the biggest city on the south of the earth, after the last World War, in year 2234. 

A new batch of explorers was made every five years and our goal was remarkably clear, to explore the universe.
Lots of lives and resources had gone after the last war and earth's life was nearly at the end unless we were able to find another place to live.

Our training lasted ten years. Firstly, five years indoors in the Me, Eco of the metropolis, connected to the Main brain who gave us all knowledge from human history such as biology, mathematics among others.
We had a weekly test. We could be removed if we failed. A failed test meant being unsuitable for the Major mission.

This early days were so hard as a novice-explorer that I often had nightmares. I knew any day could be the last one. 
I still remember when I was three years I was nearly to fail a weekly test. I was wondering about the fifth answer for a long time. Time was ticking. That moment was so frightening. Luckily, I answered the right answer. I dreamt about it for ages.

Periodically, we could have a chat with your own tutor after weekly test. My tutor was called Bri. It was so nice. It always made me feel better kidding me. Such a good android that I won't ever forget it.

Finally, we were training outdoors the following five years. It was when we realized human beings were in such a critical point that we couldn't fail. 
We met many new people who were working hard to help us to get successful in our mission. I felt sorry about them. Human beings didn't deserve such a crummy end.

I took off by spaceship in year 2244. I didn't know this would be last time I was going to see earth.