Having been tempted by the Abyss King's retainer, Hime is trapped inside the Sorcerer's Spire. In the spire, which has taken the form of the world inside her heart, Satou encounters various versions of Hime and is asked a mysterious question. As the true nature of the dark heart which captured Hime ...

Having been tempted by the Abyss King's retainer, Hime is trapped inside the Sorcerer's Spire. In the spire, which has taken the form of the world inside her heart, Satou encounters various versions of Hime and is asked a mysterious question. As the true nature of the dark heart which captured Hime grows gradually clearer, Satou makes a big decision...