Death of Stars and Moon

The Mu family, a family of immortal cultivators, changed overnight. Mu Xuan went out to practice and escaped a disaster. While pursuing his enemies, he discovered that the Mu family was nothing but duckweed in the turmoil. The world is in turmoil and the wind is surging. He is like a boat overnight facing the huge waves. Who can control the ups and downs in this turmoil? [The plot is purely fictitious, please do not imitate or plagiarize.