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...
And how many slimes did you defeat 
each day to get so strong?
وكم من الهُلاميّات هزمت كلّ 
يوم لتصبحي بهذه القوّة؟
Und wie viele Schleime habt Ihr täglich gejagt,
dass Ihr schließlich so stark wurdet?
Dites-moi, Mme Azusa,
E quanti slime ha sconfitto al giorno 
per diventare così forte?
Falando nisso, quantos slimes a senhorita
mata por dia para ficar tão forte?
Сколько же вы их каждый день побеждаете,
раз стали такой сильной?