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, "The Primordial Goddess of Death". She was given that title as no one knew her face or name, the only thing that they remember about her is her Dazzling Black hair that was dancing through the wind as she kills all the monsters, while her Scythe was dripping with Blood. 1,000 years have passed since, and new Heroes were born because of the Prestigious School that helps students to become Aspiring Hero just like "The Primordial Goddess of Death". "Ahhh... I'm bored as hell, should I go into one of my Academies and be a teacher?" A.N Sorry for the inconvenience, I might actually add Romance to the story, but that would probably in the middle part of the Story. Cover Art is not mine, if the artist want me to remove it he/she can message me.