My Heart Is Like a Sword

While everyone practices immortality, I practice swordsmanship alone. Among the disciples selected by Niu Erxian Sect, the most heaven-defying mortal bones were detected. It is impossible to become an immortal through cultivation in a lifetime. But Niu Er was born with a sword of the heart. Even with its secrets, it still failed to escape the eyes of Jian Zong. He was accepted as a disciple by the last gatekeeper of the Sword Sect and taught half of the Heart Sword techniques. From then on, he embarked on the journey of swordsmanship. What is the Heart Sword? If you practice it to the tenth level: you can kill demons at the lower level, and you can kill immortals at the upper level.