Chen Ping, a modern social animal, accidentally transformed into Chen Ping, a young man from the late Han Dynasty with the same name and surname (Liu Bang's counselor in history). He has his own fuzzy historical knowledge base and the ability to complain about modern thinking (God's perspective + limited cheating).
He originally wanted to live a low-key life (salted fish), but he was caught up in the troubled times and was forced to "open business".