Immortality

When I was eight years old, I read in an old book in my hometown about an ancient man who could wield a sword. Later, when I was eighteen years old, I found an old book in a foreign friend's house, which contained this ancient man. Then when I was twenty-eight years old, I heard someone mention this ancient man during the epidemic. Later, when I was thirty years old, I met this ancient man in my study. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.