The Holy Grail of Eris

Betrayed by her fiancé's lover and sentenced to public execution, Constance Grail, a plain viscount's daughter known for her honesty, faces death—until a mysterious voice offers salvation. Scarlett Castiel, a noblewoman long thought dead, may be her only hope. Together, these unlikely allies uncover a dark conspiracy lurking in the heart of high society, where betrayal, secrets, and power collide.

• 
  Kana Ichinose

  Constance Grail (voice)
• 
  Sayumi Suzushiro

  Scarlett Castiel (voice)
• 
  Yohei Azakami

  Randolph Ulster (voices)
• 
  Mao Ichimichi