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.
finally, you become a 
full-fledged demon lord.
.في النهاية، تصبح ملكًا شيطانيّا كاملًا
y te vuelves un rey demonio en toda ley.
y te vuelves un rey demonio
en toda regla.
puis il deviendra
un véritable maître.
infine, diventi un Signore dei Demoni a tutti gli effetti.
finalmente, seu corpo se transforma
em um lorde demônio alado.