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.
Is she gonna hit me with 
the corner of that book?
هل ستضربني بزاوية هذا الكتاب؟
Du willst mich doch hoffentlich nicht
mit dem Buchrücken verdreschen?
¿Va a golpearme con el libro?
¿Va a pegarme con el libro?
Elle compte utiliser son bouquin
comme arme ?
Vuole lanciarmi il libro 
per colpirmi con uno spigolo?
Ela vai vir me bater com
o canto daquele livro?
Неужели книжкой бить будет?