The Bored Immortal Became a Teacher

1,000 Years Ago... The Earth was shaken and evolved into a much more dangerous Place. The Earth got larger by twice its size, but the Portals suddenly appeared in front of the Human Being that reduced their Population to 40% left, but hope was almost lost. They have been granted one more time to survive, a System was brought to everyone that they can use to evolve and get stronger. A Hero suddenly came upon them that slaughtered all of the Monsters that came out of the Portal. She was then given the title, \