This story takes place before Rimuru's reincarnation. Shizu, also known as the Conqueror of Flames, responds to an urgent request calling her to the Kingdom of Filtwood. When she reaches the castle, many adventurers are already there. What request could have demanded such a huge gathering? It turns out a demon has been revived, and the adventurers have been called to subjugate it. It is said that more than ten of the most skilled adventurers have already been killed by this demon. But there is more to this request than meets the eye...
He seems to be a mage, 
but he shows no weaknesses.
يبدو ساحراً لكنّه لا يُظهر أي نقطة ضعف
Er scheint ein Magier zu sein,
bleib auf der Hut.
Parece un mago,
pero no muestra debilidad.
Parece un mago,
pero no muestra debilidad.
Probablement un mage,
mais c’est dur à dire.
Sembra simile a quella di uno stregone.
Me parece um mago,
mas não vejo um ponto fraco.
Вроде бы и колдун…
но не подберёшься.