Walker of Heaven and Earth

I am a clan of heaven and earth walkers Protect the world Not harassed by outsiders Everything in this world can listen to my orders If any alien race dares to enter this world, Kill without mercy I'm invincible in this world Out of this world, I still have a way to be invincible I have to make up the words, I really can't think of whether I would like to read it or not. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.