When Did I Become Invincible?

Chen Ping'an traveled to the world of immortality for five years. He had a system, but he was always urged by the system to feed chickens, raise fish, chop firewood and cook rice, so that he still had no cultivation for several years. The strange thing is that, while he was still a mortal, one day he found a group of cultivation masters kneeling down when they saw him and shouting "Senior". "What's going on! I feed chickens and fish every day and do nothing, so I'm invincible?" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.