The story focuses on Zero, a woman who can manipulate magic through song. Partnering with a dragon named Mikhail, Zero set out to kill her five sisters, who rule the world's regions. As she travels, the player discovers the true reason behind Zero's rampage.

The story focuses on Zero, a woman who can manipulate magic through song. Partnering with a dragon named Mikhail, Zero set out to kill her five sisters, who rule the world's regions. As she travels, the player discovers the true reason behind Zero's rampage.