In the first era, the Heavenly Clan and the Demon Clan were at war, and the world was divided into two sides.
The Dragon Clan took advantage of both sides to lose and dominated the Second Era.
The dragon clan declined, and the Lich King led the undead army to usher in the third era.
The dwarves defeated the undead with machines as the main force, and entered the fourth era with a strong posture.
Afterwards, the elves and the orcs had a cold war, while the dwarves stood aside and the situation in the Fifth Era remained tense.
With their excellent learning ability and rapid reproduction ability, humans established imperial rule in one fell swoop and formed the Sixth Age.
The name of the game that is introduced simply is "The Seventh Era".
What era was that, you ask?
Haha, what do you think?