Rimuru becomes the new teacher for Shizu's students. However, having been summoned into this world against their will and facing shortened lifespans as a result, the children's feelings are complicated, and they're reluctant to accept Rimuru. So Rimuru proposes a series of mock battles with each of them to ascertain their abilities and allow them to let off steam.
Doesn't look like the energy in their 
bodies has been reduced at all.
لا يبدو لي أنّ الطاقة التي في أجسامهم
قد نقصت إطلاقاً
Die Energie in den Kindern
hat überhaupt nicht abgenommen.
No parece que bajara
la energía de sus cuerpos.
No parece que haya bajado
la energía de sus cuerpos.
Leur énergie ne semble pas
s’être affaiblie le moins du monde.
pare che l'energia al loro interno 
non sia diminuita di un briciolo.
Parece que a energia dentro
das crianças não diminuiu nada.
Внутренняя энергия детишек
ни на каплю не сократилась…