My Spiritual Energy Revived and I Protected My Girlfriend Behind Me

I traveled through the world of immortality due to an accident. I relied on the knowledge of my seventeen-year study career on earth to survive and cultivate for thousands of years. After successfully breaking through the space-time rift, I traveled back to the earth. When I returned, the earth suddenly revived in spiritual energy, and aliens also came. I then protected my girlfriend whom I had not seen for thousands of years behind me... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.