The protagonist is reborn and travels through ancient times, and finds that the world is somewhat similar to the Southern Song Dynasty in his previous life. As he slowly adapts to the process, unexpected things soon come one after another: the courtesan is actually a witch, the ancestral sword technique is actually an unknown half-finished sword technique, the Southern Zhou Dynasty seems prosperous but is gradually declining, and the Northern Wei Dynasty seems strong but is full of hidden dangers. Fighting with a sword or taking over the world with power? No matter when you see a beautiful young lady, let her call her "Erlang" first...
