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 about "Octagram," meaning 
the Eight-Star Demon Lords?
ما رأيكم بـ"أوكتاغرام" والّذي يعني
أسياد شيطان النجم الثّماني؟
Die acht Dämonenkönige.
Das Oktagramm.
Las Ocho Estrellas: Octagram.
Las Ocho Estrellas: Octagram.
« Les Huit rois-démons étoilés »,
ou « Octagramme »…
I Re demoni delle otto stelle,
"Octagrama", que significa "Lordes
Demônios das Oito Estrelas". Que tal?
Звезда Восьми Князей — «Октаграмма».