Change the World in One Day

Tomorrow is the end of the world. Starting at 0:00:00 tonight and ending at 0:00:00 tomorrow, humanity will be completely wiped out. … A hundred days and nights without sleep, starting from today, I will spend my life just for tomorrow. … "I came to this world to see tomorrow." … The only rebirth system: Countdown: 23:59:59:99 Number of times remaining: 99 Strength Level: Strongest