He always thought he was a mortal, but he didn't know that his yard was full of artifacts and the chickens he raised were even phoenixes! It was only after five years of living in a mortal town that the system finally let him go in contact with cultivators. It was then that he discovered that no matter how strong people were, when they saw him at that moment, they would be scared to death and call him senior. Some even knelt down to worship... The story is full of fun with peculiar style and interesting surprises! When Did I Become Invincible / Since When Am I Invincible