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...
and the records indicated 
that Shizu defeated Black.
وأشارت السجلّات إلى أنّ شيزو
قد هزمت أسود
Aufzeichnungen zufolge, wurde dieser Kuro
dann von Shizu geschlagen.
y según los registros, Shizu lo venció.
y según los registros, Shizu lo venció.
che fu poi sconfitto da Shizu.
e os registros indicam que
Shizu derrotou Preto.
А Сидзу войдёт в летописи как та,
что одолела Черноту.