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?!
I was sure there would come a day
 when he'd obtain human happiness.
.كنت واثقًا أنّ يومًا ما سيأتي سيحقق فيه السعادة البشرية
Es würde sicher der Tag kommen,
an dem er sein menschliches Glück findet.
Un jour, il finirait
par trouver le bonheur dans notre monde.
Ero sicuro che un giorno sarebbe riuscito
 a essere felice anche come essere umano.
Eu tinha certeza que, um dia, ele
encontraria a felicidade como humano.
Я надеялся…