Aileen finds out that Claude's aide, Keith Eigrid, has been selling demons. Keith tells Aileen about the reason why and reminisces about their past. Now that Aileen knows his true feelings, she decides to cooperate with Keith to prevent Claude from despairing about humanity and turning into a demon. At the same time, Cédric and Lilia visits the demon lord's castle to tell Claude Keith's secret?!
But humans are much 
dirtier than I thought.
.لكن البشر أقذر بكثير مما ظننت
Doch die Menschheit …
ist einfach zu schäbig …
pero los humanos son peores
de lo que pensaba.
pero los humanos son peores
de lo que pensaba.
Malheureusement,
les hommes sont terriblement sales.
Ma gli umani si sono rivelati
 più viscidi di quanto pensassi.
Mas os humanos são muito
mais sujos do que imaginei!
Вот только люди…