My Dismissed Empress Teacher, Immortal

Chen Chang'an spent ten thousand years cultivating with his beautiful master, but was ruthlessly expelled by the sect for failing to break through his cultivation bottleneck. With nothing but a sentient earth dog, he wandered the mortal world. Upon returning to the Chen family, he discovered the clan had fallen on hard times, with their industries seized by powerful figures and members barely surviving. Chen embarked on a path of revenge, effortlessly annihilating the arrogant human emperor, wielding his sword against the heavens, and clearing all enemies with absolute strength. He ultimately led the Chen family out of the valley, restored their glory, and rose to become the world's top power.