Invincible Through Time Travel, His Son Accidentally Saves the World!

I originally thought that I was alone, without blessings and roots, and just wanted to find my way home. But then I realized that I couldn't go back. I was confused and collapsed. I felt that my life in this other world was meaningless. I started to mess around, muddle along, like a madman! Later, by chance, I became a father. I wanted to protect him, but I couldn't completely protect him. I got angry. I began to seriously accept this other world. I wanted to change this other world in my own way. I thought this was the beginning of my legendary life! Unexpectedly, I was wrong. This was the beginning of my son's legendary life!