How Could This Stranger Be so Mean?

The gods and demons are resurrected, and almost all the mythological monsters, gods and monsters on the earth have appeared in the world. Human beings have the ability to communicate with spirits. All races will awaken at the age of 15. Whether it is a weapon or a magical beast, you can communicate with yourself and practice. When the protagonist first arrives in a different world, how can he survive on his own in a troubled world, and how can he become bigger and stronger and create greater glory in this world where monsters and monsters are rampant? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.