Cultivation of Immortality in the Fire River Navigation

I am a novice author, please support me. This novel is about cultivating immortals for revenge. Because the power of the male protagonist slowly disappears, the villain slowly reveals his ambition, and then kills the protagonist. Then the protagonist miraculously comes back to life, and goes to find his revenge story. Then the protagonist starts to live a normal life, and then unifies the world. Then his sister is not the biological sister of his parents. His sister's life experience is actually ............. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.