After defeating Clayman at Walpurgis, Rimuru officially became a Demon Lord and a member of Octagram. Meanwhile Diablo awaits Rimuru's return in Tempest, and is anxious to learn about his master's activities as soon as possible. A look back at Walpurgis.
would be punished for 
declaring himself a Demon Lord.
ريمورو العظيم على إعلان نفسه سيّد شياطين
pour avoir osé
s’être autoproclamé roi-démon.
a punição que recairia sobre o Rimuru-sama
por se declarar um Lorde Demônio.
как наказать хозяина за то,
что назвался Князем без их одобрения.