The story tells the story of the mysterious killer organization Seven Killing Sect. In recent years, under the leadership of the suzerain Baili thorns, they have been killing all the way in the rivers and lakes, and gradually become a well-known sect. The killer sword among them has made people in the rivers and lakes terrified. Everyone doesn't know that the innocent killer sword is just doing these killings to repay the kindness of the sect master Baili thorns. After many years, he has always wanted to leave the sect and live an ordinary and simple life. The lover plotted, lost his arm, and became a thorn in the side of a hundred thorns.