I Have Been Guarding the Tomb for Three Thousand Years at the Beginning, and the Tomb Is Full of Old Acquaintances

I have been guarding the tomb for three thousand years at the beginning, and the tomb is full of old acquaintances - I buried the Immortal Emperor, and I also buried the Demon Lord. Today someone came to dig the grave with a shovel, and I advised him not to move: if this shovel goes down, the entire world of immortality will be at risk. He doesn't believe it, it's not digging. So, all the sects knelt in front of me.