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.
I can make blades of water 
rain down on you from there.
أستطيع صنع أنصال مائيّة تنهال عليك
من هناك
Ich kann nun Klingen aus Wasser
auf Sie herabregnen lassen.
Puedo hacer que espadas de agua
salgan desde ahí.
Puedo hacer que caigan
espadas de agua de ahí.
Je peux y faire apparaître
des lames aquatiques.
Lì dentro
Posso fazer chover lâminas
de água em você aí dentro.
В темницу…
я могу добавить дождь из водных клинков.