Changshengjing: Start with Medicinal Introduction

The protagonist, Changsheng, was abandoned since he was a child and managed to survive with the help of Black Tai Sui. Therefore, he cherished his life very much. Later, because his master wanted to kill him to practice medicine in order to become an immortal, he killed his master to save his life, and he embarked on the path of cultivating immortality. Why? I just want to live, why do everyone want to kill me. In order to survive, Changsheng fought his way on the road to immortality.