Shen Qingci, the "retired best swordsman in the world", was forced to return to the world. He experienced conspiracy in the world, the mystery of his life experience, the duel between good and evil, and the love between his children. He explored the deep connotation of "a great chivalrous person serves the country and the people", showed the choice between the rivers and lakes and the righteousness of the family and country, and interpreted the chivalrous spirit of "the sword can be hidden, but the heart cannot be cold".
