Not into Immortals and Demons

Why practice, in order to live forever and become an immortal? So what if they are immortals, they just live longer, in order to kill decisively after becoming possessed by the devil? So what if they are demons, they are just a bunch of simple-minded pedants... The vitality of all things that are born on the earth, the blood dripping from the slaughter of cities in the world, and the immortal cultivators can easily destroy a world... The war between immortals and demons has resulted in the death of innocent creatures. What do you think you should do? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.