This is a prequel for the first four episodes. It begins with a young Tiara summoning her first partner,Graham. When she was young she has a relationship with Kagetsu. Tiara is still trying to control Graham where she can trust Graham and control her power.

Sarah is offered as sacrifice to the Throne of Yord. Kagetsu is torned apart from the lost of his sister. Tiara is sent on a mission but something goes wrong. She can't control Graham, so she is punished.Lena summones her partner Leon. Later, Lena visits Tiara in prison and introduce Leon and ask her to take care of Sarah. Kagetsu finally decides to take the Throne of Yord in order to save his sister Sarah. Graham is the only one that stands in Kagetsu's way when he steals the throne of Yord and tries to escape the Guardian World.