The society calls the teaching of Yuhun Sect as “Heresy," which relying on the technique to tame spiritual beasts using magic tools. For Mo Lianjian, a young disciple who lost his parents since a little, expertise on the practice is a struggle especially when his genius childhood friend, Lian Beibei always tries to pick a fight. One day, Mo obtained a fragment of a legendary sword which rumored to be owned by the last swordsman of Yuhun Sect...