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.
I truly thank you all for 
responding to my summons.
أشكركم حقّاً على تلبية دعوتي
Ich möchte mich
herzlich dafür bedanken,
Muchas gracias por acudir a mi llamada.
Muchas gracias por acudir a mi llamada.
Vous tous qui avez bien voulu
accepter mon invitation,
Grazie di cuore
Agradeço sinceramente a todos por
responderem à minha convocação.
Позвольте от всей души поблагодарить вас
за то, что откликнулись на мой зов!