Regressor instructional manual

One day, he found himself unexpectedly transported to another world. Monsters began to emerge, heralding a massive catastrophe. His abilities were at the lowest level. [Player's level is low] [Your level is hopeless] It makes no difference if you are the chosen hero, a skilled sorcerer, or a person who has journeyed back in time. Everyone must strive to the fullest to ensure their survival. This is the Regressor Instruction Manual. "It doesn't matter if I'm trash." Is there anyone who wouldn't go to any lengths to stay alive?