Supernatural Martial Arts

In the land of chaos and nothingness, there is an office that collapsed! It's over again, no matter how many times, we still have to do it again, open up the world, reincarnate into the world, when the owner of the voice reincarnates, an old man comes to the office, the boy still has such a short memory, I can only add some information for you, there is no possibility of growth in a single world, first of all, this is a mysterious rule, then some world fusion, and some infinite growth.