Earth is about to level up to the next level, but humanity is not ready. In order for humanity to not be decimated by monsters, god sends humanity to other worlds to prepare them, but he forgets one person.
The protagonist escapes god's perception but is later found out. In order for him to survive god sends an angel to teach him martial arts.
The time is stopped, and he spends 1000 years training all alone, while the other humans spent 10 years on other worlds to level up and learn skills.
Later on, humanity is brought back, and the evolution of Earth begins.