Unknown Coming: I have an invincible domain

[End of the World + Civilization Invasion + Invincible Domain + Enjoyable All the Way + No Harem + Humorous]Mysterious creatures descended, the earth's resources were exhausted... When the human race was on the verge of extinction, a small shop owner stepped into the air and decided life and death with one word! When all this was over, Su Xiao thought he could stay on the earth forever with the invincible domain... But he found that the vast starry sky above his head was extremely gorgeous, millions of time and space... Three thousand small universes... Nine original universes, and thousands of races!Since you are invincible, then stay invincible...