A magical kingdom in the sky called Midoria faces a constant struggle for power. For thousands of years, the power of Light has beat down the darkness, thanks to the great but mysterious power of Midoria's Heart. However, the Dark power is quickly growing and spreading, bringing the threat of death and destruction to the once peaceful kingdom.
After the horrendous murder of her parents, seventeen year old Adelle must return to live with her grandparents, the rulers of the kingdom of Midoria. It is there that Adelle discovers a secret room hidden in the castle, which holds clues to the whereabouts of the lost Heart of Midoria, and the Dark power that it once sealed away.
But time is running out, and the seal that binds the Darkness is wearing thin. Adelle must rush to save her kingdom from the coming evil before it is too late, but at the same time, she must make a decision much closer to her own heart. A choice that could cost her everything and change her entire future.