After becoming the strongest in the world before she even knew it, Azusa entered into a new lifestyle with her first pupil, Laika the dragon, and discovered fun and enjoyment in it that she hadn't known before. But then, one day, a young girl calling Azusa her "mama" shows up and proclaims that her younger sister wants to kill Azusa. But Azusa has no memory of giving birth to these two girls, or of becoming a mother at all...
but you are still the one 
who killed the slimes...
...لكنّك ما زلت من قتلت الهُلاميّات
aber du bist auch immer noch diejenige,
die die Schleime getötet hat …
Pero eso no cambia
que mataras a tantos slimes.
Pero eso no cambia
que hayas matado a tantos slimes.
mais je dois toujours
venger les slimes.
ma devo comunque vendicare gli slime...
mas você ainda é aquela
que matou os slimes...
но... ты же всё равно
убивала слизь...