It's the last episode, and Hijiri and Arata have their final showdown. Lugh joins in the fight, along with the Trinity Seven--Lilith, Levi, Arin, Mira, Akio, Yui, and Liese. Why is she attacking Arata? And what secret does Arata hold?
A demon lord candidate will 
become the demon lord,
Ein Teufelsanwärter wird
zum Teufel werden
Un candidato se convertirá en rey,
Le prétendant deviendra maître,
Il candidato a Signore dei Demoni 
diverrà il Signore dei Demoni
Um candidato lorde demônio 
vai virar um lorde demônio,