I Devour Everything

Nine years ago, the System arrived. Blue windows opened in front of every human on earth. Dungeons tore open in the cities. Monsters poured out. People who survived the Arrival woke up with levels, classes, and skills. Everyone else became food. Silas King died the night of the Arrival, a shard of falling black crystal through his chest and a slime crawling into the wound. Nine years later, the slime wakes up thinking it is Silas King.  Monsters, Humans, and everything in between...before his hunger, are they truly anything?!