After Five Hundred Years of Seclusion, I Saved Someone and Was Exposed.

When I traveled to this world, just because the system said "This is an earthly immortal who is worse than a dog, and golden immortals walk everywhere", the shrimp cakes have been living in a nest on the mountain for five hundred years. It wasn't until he rescued a lost traveler that he realized that this was a modern world where technology was paramount. At this time, the system silently said, "Congratulations to the host for cultivating to become a saint." Shrimp cakes are down the mountain.