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...
Granting your wish will give 
me something to do, at least.
سيمنحني تحقيق أمنيتك شيئاً أفعله
على الأقلّ
Zum Zeitvertreib kommt
mir dein Wunsch gerade recht.
Conceder tu deseo
al menos me dará algo que hacer.
Conceder tu deseo
al menos me dará algo que hacer.
J’exaucerai ton souhait,
histoire de passer le temps.
Esaudirò il tuo desiderio, tanto per passare il tempo.
Concederei esse desejo,
para passar o tempo.
Я исполню твои мольбы,
чтобы развеять скуку.