The Holy Grail of Eris Novel Volume 2 was written by Kujira Tokiwa with illustrations by Yu-nagi.

Connie has been possessed by the infamous villainess Scarlett and forced to aide in her revenge. On top of investigating the truth of Scarlett's execution, Connie must deal with a sham engagement and censure by suspicious nobles. Just as she begins to pick up on a possible conspiracy, an unknown evil targets her personally. She barely escapes a mysterious attacker, but now her best friend Kate has been kidnapped...?!