KuKu is the year designation for the era when Kkulf KKulf was the Demon King. It spans approximately 6200~4200 years prior to the Rance game time.

This is the first designated era. This is the first and last era with The Rounds Ones as the Protagonist Race. This is the longest era in recorded history, spanning 2014 years.

  • KuKu2014 = AV0000
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