Suddenly one day, Zheng Nan traveled through time with the connotation system and came to a boring world where obscene jokes did not exist.
Faced with girls who are surrounded by blank sheets of paper and a system with no bottom line, see how Zheng Nan transfers the knowledge of male and female physiology to every corner!
This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.
