Story of: As the mastermind behind the scenes, he created the Lizardman! [Behind the scenes, no heroine, with a system, invincible, monster creation flow, various forces, big fight. ] Under the bustling city, there are unknown secrets hidden. Lizardmen, ghosts, sea kings, zombies, vampires, King Arthur's holy sword, sirens, Medusa, the Hulk, Spider-Man, the Monkey…