The castle of Cephiro casts a shadow over the world, leaving it in darkness and despair. Hikaru, the protagonist, has fought hard but Tokyo now lies devoid of life and hope. The ice-witch Alcyone seeks revenge on Hikaru, but Lantis intervenes, trapping her in a magical maze where she must prove her worth. Meanwhile, Cephiro's warlocks relentlessly pursue Hikaru's friends. Umi and Fuu must scour the silent city to find the slumbering Mashin, ancient divine entities that can fuse with them to create formidable warriors. Fear and inexperience weigh heavily on the Magic Knights as they face the overwhelming power of Cephiro. Will even the Mashin be enough to defeat their wicked foes?