In Great Sage's recollection, all seems to be smooth sailing for Tempest... but then the oldest of the Demon Lords, Milim Nava, arrives! Rimuru, as Milim's bestie, is appointed by the majority to be in charge of keeping an eye on her. With no knowledge of this, Milim explores Tempest and interacts more with the residents of the city of monsters... and Rigurd keeps track of all the damage she causes along the way in a report for Rimuru. "Rigurd... are you angry?"
I wanna be a Demon Lord, too! 
Take me as your pupil!
!أريد أن أصبح سيّد شيطان أيضاً
!اتّخذيني تلميذاً لكِ
Ich will auch ein Dämonenkönig werden.
Quiero ser un Rey Demonio.
Quiero ser un Rey Demonio.
Je veux être un roi-démon !
Vorrei diventare anche io un Re demone!
Também quero ser um Lorde Demônio!
Я тоже хочу Князем Тьмы стать!