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?!
We could have continued our investigation 
without telling you, but Lilia—
...كان بإمكاننا متابعة تحقيقنا دون إخبارك، لكنّ ليليا
Wir hätten das auch ignorieren und
unsere Investigation fortsetzen können.
Podríamos haber seguido investigando
sin contártelo, pero Lilia…
Podríamos haber seguido investigando
sin contártelo, pero Lilia…
Nous comptions continuer notre enquête
sans t’en faire part,
Potevamo continuare le nostre indagini 
senza coinvolgerti, però Lilia...
Poderíamos ter continuado nossa
investigação sem te contar, mas a Lilia...
Мы вполне могли продолжить
расследование втайне,