There's Something Wrong with This Assassin

Reborn in an ancient world filled with swords and swords, he was adopted by an assassin teacher. Fang Bie was surprised to find that the martial arts in this world were more prosperous than he had imagined. From high-ranking officials and nobles to commoners, martial arts practitioners are among them. In order not to become the dregs of medicine that others just pick up to practice Kung Fu, Fang Bie worked hard to practice martial arts, tapping acupuncture points to light up the machine skills, palm skills and sword skills to practice Qi skills. Although he has amazing talents, the young man is as stable as an old dog. When you relive your life, you don't just want to live a wonderful life, but you want to gain stability and live a long life. Suddenly one day, a young girl from Jin Yiwei was ordered to be an undercover agent and came to him and became his partner...