Heavens Library & Crimson Lord brings back Arata, Lilith and the rest of the Trinity Seven to face off against the greatest enemy in the history of the Trinity Seven; Lilith’s own father, who is revealed to be the strongest Demon Lord who challenges Arata who is now a Demon Lord candidate.
Is it because that man is 
your demon lord candidate?
لماذا؟ ألأنّه مرشح الملك الشيطانيّ خاصتكما؟
Wieso?
¿Porque es su candidato a rey demonio?
¿Porque es vuestro candidato
a rey demonio?
Pourquoi ?
Questo perché...
É porque aquele homem é
seu candidato lorde demônio?