Rimuru confirms that it was Gustav who cursed Zenobia with illness. It turns out he and his accomplice, Carl, are Archdemons plotting to manifest their god using Zenobia as a vessel. Can Rimuru stop them before the Kingdom of Coleus is lost?
And their reactions... 
Looks like they've figured it out.
وطريقة تصرّفاتهم... يبدو أنّهم كشفوا الأمر
Und diese Reaktion.
Die haben Lunte gerochen.
y, por sus reacciones,
creo que me descubrieron.
y, por sus reacciones,
creo que me han calado.
Et vu leur attitude,
je crois que je suis démasqué…
Il loro comportamento
E essa reação deles...
Parece que eles descobriram.
А судя по их виду…
они уже всё поняли.