Return from Another World in the 1960S

In the year 2030, my soul traveled to another world and lived in a magical fantasy plane for 300 years. I have more than 30 years of memories from my previous life. In this other world, I relied on Golden Finger to become prosperous. I successfully killed an important person in a secret treasure hunt and made great military achievements. I retreated to the second line and my injuries did not get better. Before I died, I missed my relatives and hometown. It has been 300 years. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.