Shiitagerare Reijou to Kegare Koushaku: Sono Kegare, Haratte Misemasu!

"I want you to erase this mark of corruption." The king intends to sacrifice Cass to create a better country. Jill rushes to Cass's aid and, in order to protect her, decides to erase the mark of corruption that has remained on her for so long—?