“The Spy’s Seal”
“Kanchō no Kokuin” (間諜の刻印)

Louise’s sisters move in and make Saito do all the work. At night, Siesta makes a pass at Saito when Louise shows up, just when Louise is about to strike him with a newer whip an explosion occurs. A thief has stolen something belonging to Henrietta and Wales from the principal’s office and Osmond pinpoints the woman with a magic seal on her chest. Saito and Julio try to do it secretly, but Louise finds Saito and tries to hurt him again. Then a commotion in Cattleya’s room gets their attention. The thief is found out to be Michelle, Agnès’ lieutenant. And when everything is done and over with just because Saito didn’t tell Louise what he was ordered to do along with other things that were justifiable she beats him with her new whip out of spite.