Dekien was a planet located in the Dekien system within the Outer Rim. At the time of the Sith rebellion, it was not heavily populated or developed. The Ronin, formerly a Dark Lord of the Sith who had led the rebellion, brought a shard from the kyber mirror of Shinsui Temple to Seikara Caverns and hid it within a grotto.
During a twenty year span after the war ended, the Empire took interest in the world. The tour company Eternity Enterprises developed tours that departed from the capital city, Dazenma, to visit Seikara Caverns.