Xiu Xian: Why Is That Boy More Like the Devil Than the Devil?

[Mortal flow + immortal cultivation + no time travel + no system + decisive killing] Young Qin Feng, from a poor family, learned from an old man that immortals can fly to the sky and escape from the earth, and are omnipotent. In order to see his parents again, he embarked on the road to immortality. With the help of the Holy Body of Gods and Demons, he went through many hardships and became a strong man step by step.