C643 Thirty Days?
"Every 33300 years, the world will give birth to a man who can destroy the world, and every 33300 years, this year's disaster will be called the end of the world"
"It has been 90 trillion years since the beginning of the universe's chaos, and every time a character is born during the end of the world, it will bring great destruction to the entire world. People call him Asura