A being covered in garments made of unknown animals walked through a vast icy desert. This was our protagonist, reminiscing about the last years of their life in this lonely land.
So much time has passed, yet my appearance remains unchanged, as if not even a day has passed since I arrived in this universe. Throughout my time in this world, I've had many good and some difficult and bad experiences, experiences that would change anyone for better or worse. However, thanks to my powers, my mind remains intact, keeping me sane.
While exploring the world, the first thing I discovered was that I was truly in the era of dinosaurs' early existence. After escaping that forest, I traversed vast stretches of land, but I didn't encounter many dinosaurs, only a few small ones that were easy to kill. However, I was bitten and lost some parts of my body along the way, but it only made me stronger.
After a few years, earthquakes began, gradually increasing in intensity. One day, while walking as usual, a gigantic tremor occurred. I looked towards the horizon and saw a massive wave approaching, a tsunami with an unstoppable force, devastating everything in its path. When it arrived, I was hit with tremendous force and carried away.
I couldn't breathe, but a few seconds later, my body adapted to the environment, and I no longer needed air. My eyes adjusted to the darkness, but my body continued to be wounded and scraped as I was swept away. Nonetheless, my body constantly healed and grew stronger.
Several days later, I was still in the water, unsure of my location. All I could see was water. It seemed that I had survived my first major extinction event, although it took me years to realize it.
Lost and searching for land, I had to swim. Over time, my body further adapted, and now my swimming speed was inhumanly fast. Throughout the journey, I noticed that I no longer needed to eat anything to sustain my physical prowess.
A few months later, I found land. Things were still grim, with trees and mountains destroyed. That's when I began my journey again. Over the years, dinosaurs started appearing more frequently and growing larger.
It was getting worse, as if nature was evolving to become deadlier. However, I was also evolving, and much faster than anything else. I could no longer be called human. While my external appearance remained normal, my strength, speed, and endurance were far beyond the ordinary.