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.
How would you know what 
happened before that?
فما أدراك بما حدث قبل ذلك؟
Dann wisst Ihr doch nicht,
was davor passiert ist, oder?
No debería saber
lo que pasó previamente.
No debería saber
lo que pasó previamente.
vous devez ignorer
ce qui s’est passé avant cela.
Non dovresti sapere
cos'è successo prima del tuo arrivo.
Creio que não sabe nada
do que ocorreu antes disso.
Откуда вам знать,
с чего всё началось?