Periods

The world experienced a great disaster in the year 2100. It was a time when nuclear wars and technological wars had passed, humanity was almost destroyed. People still survived this great disaster. The people who remained behind started to renew this place and 12 rulers did this. The 12 rulers argued that the world should live in the past. That's why they realized the era system. Will the rulers be able to find their problems in the main character? Will the thing they want the most, immortality, be real?