Chise and Elias are trying to cleanse a corruption. Two sorcerers are trying to stop them. To cleanse a corruption Chise need to know what happened in creating corruption in first place.
The Leannán Sídhe begs Chise for her help: Joel is on his death bed, and she can only seem to make things worse. Chise vows to do what she can to turn that around.
Elias continues searching for a way to help Chise, even if that means taking desperate measures. Chise encounters a familiar face and considers its proposal.
Joseph tries to free himself from the curse of Cartaphilus by switching his curse with the one Chise possesses. Chise is captive in her own memories, reliving the most traumatic moment of her childhood.