Hira Chikara

"'It's been so long, my children. I am sorry for leaving you in the darkness.'"Hira Chikara is the elemental of healing, the wife of Shien and the mother of the four main protagonists; Ki, Akua, Kaen and Kori.

History
Little is known about Hira. However, in episode 5, it is discovered that she is alive. According to Shien's actions, Hira is believed to be dead, along with Kori. It is then realised, in Lord Seiko Chikatilo's conversation with his minion, Shoichi, that she is alive and well.

She is not involved in the Ice Project and her presence is completely unknown (aside from the dark nation) up until Seishin detects a living spirit during the Battle of the Elementals within the walls of the dark nation.