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.
Hey, Treyni-san.
تريني-سان
Hallo, Tryney. Ich wollte dich fragen,
wo ich hochrangige Naturgeister finde.
Hola, Treyni.
Hola, Treyni.
Ah, Tryney !
Ah, Treyni-san.
Здравствуй, Трейни!